Nicholas M Harrison

Bedlinskiy I, Kubarovsky V, Stoler P, Adhikari KP, Akbar Z, Pereira SA, Avakian H, Ball J, Baltzell NA, Battaglieri M, Batourine V, Biselli AS, Boiarinov S, Briscoe WJ, Burkert VD, Cao T, Carman DS, Celentano A, Chandavar S, Charles G, Ciullo G, Clark L, Colaneri L, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Deur A, Djalali C, Dupre R, El Alaoui A, El Fassi L, Elouadrhiri L, Eugenio P, Fanchini E, Fedotov G, Fersch R, Filippi A, Fleming JA, Forest TA, Garcon M, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Gleason C, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Guo L, Hafidi K, Hakobyan H, Hanretty C, Harrison N, Hattawy M, Hicks K, Hughes SM, Hyde CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jiang H, Jo HS, Joo K, Joosten S, Keller D, Khachatryan G, Khachatryan M, Khandaker M, Kim A, Kim W, Klein FJ, Kuhn SE, Kuleshov SV, Lanza L, Lenisa P, Livingston K, MacGregor IJD, Markov N, McKinnon B, Meziani ZE, Mirazita M, Mokeev V, Montgomery A, Movsisyan A, Camacho CM, Nadel-Turonski P, Net LA, Ni A, Niccolai S, Niculescu G, Osipenko M, Ostrovidov AI, Paolone M, Paremuzyan R, Park K, Pasyuk E, Peng P, Phelps W, Pisano S, Pogorelko O, Price JW, Prok Y, Protopopescu D, Puckett AJR, Raue BA, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Saini MS, Salgado C, Schumacher RA, Sharabian YG, Skorodumina I, Smith GD, Sokhan D, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Taiuti M, Tian Y, Torayev B, Turisini M, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Weinstein LB, Wood MH, Yurov M, Zachariou N, Zhang J, Zonta Iet al., 2017, Exclusive η electroproduction at <i>W</i> &gt; 2 GeV with CLAS and transversity generalized parton distributions, PHYSICAL REVIEW C, Vol: 95, ISSN: 2469-9985

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• Citations: 14

Parkes MA, Tompsett DA, d'Avezac M, Offer GJ, Brandon NP, Harrison NMet al., 2016, The atomistic structure of yttria stabilised zirconia at 6.7 mol%: an ab initio study., Physical Chemistry Chemical Physics, Vol: 18, Pages: 31277-31285, ISSN: 1463-9084

Yttria stabilized zirconia (YSZ) is an important oxide ion conductor used in solid oxide fuel cells, oxygen sensing devices, and for oxygen separation. Doping pure zirconia (ZrO2) with yttria (Y2O3) stabilizes the cubic structure against phonon induced distortions and this facilitates high oxide ion conductivity. The local atomic structure of the dopant is, however, not fully understood. X-ray and neutron diffraction experiments have established that, for dopant concentrations below 40 mol% Y2O3, no long range order is established. A variety of local structures have been suggested on the basis of theoretical and computational models of dopant energetics. These studies have been restricted by the difficulty of establishing force field models with predictive accuracy or exploring the large space of dopant configurations with first principles theory. In the current study a comprehensive search for all symmetry independent configurations (2857 candidates) is performed for 6.7 mol% YSZ modelled in a 2 × 2 × 2 periodic supercell using gradient corrected density functional theory. The lowest energy dopant structures are found to have oxygen vacancy pairs preferentially aligned along the ⟨210⟩ crystallographic direction in contrast to previous results which have suggested that orientation along the ⟨111⟩ orientation is favourable. Analysis of the defect structures suggests that the Y(3+)-Ovac interatomic separation is an important parameter for determining the relative configurational energies. Current force field models are found to be poor predictors of the lowest energy structures. It is suggested that the energies from a simple point charge model evaluated at unrelaxed geometries is actually a better descriptor of the energy ordering of dopant structures. Using these observations a pragmatic procedure for identifying low energy structures in more complicated material models is suggested. Calculation of the oxygen vacancy migration activat

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Bosted PE, Biselli AS, Careccia S, Dodge G, Fersch R, Guler N, Kuhn SE, Pierce J, Prok Y, Zheng X, Adhikari KP, Adikaram D, Akbar Z, Amaryan MJ, Pereira SA, Asryan G, Avakian H, Badui RA, Ball J, Baltzell NA, Battaglieri M, Batourine V, Bedlinskiy I, Boiarinov S, Briscoe WJ, Bultmann S, Burkert VD, Cao T, Carman DS, Celentano A, Chandavar S, Charles G, Chetry T, Ciullo G, Clark L, Colaneri L, Cole PL, Contalbrigo M, Cortes O, Crede V, D'Angelo A, Dashyan N, De Vita R, Deur A, Djalali C, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Eugenio P, Fanchini E, Fedotov G, Filippi A, Fleming JA, Forest TA, Fradi A, Garcon M, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Gleason C, Gohn W, Golovatch E, Gothe RW, Griffioen KA, Guo L, Hafidi K, Hanretty C, Harrison N, Hattawy M, Heddle D, Hicks K, Holtrop M, Hughes SM, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jiang H, Jo HS, Joo K, Joosten S, Keller D, Khandaker M, Kim W, Klein A, Klein FJ, Kubarovsky V, Kuleshov SV, Lanza L, Lenisa P, Livingston K, Lu HY, MacGregor IJD, Markov N, McCracken ME, McKinnon B, Meyer CA, Minehart R, Mirazita M, Mokeev V, Movsisyan A, Munevar E, Camacho CM, Nadel-Turonski P, Net LA, Ni A, Niccolai S, Niculescu G, Niculescu I, Osipenko M, Ostrovidov AI, Paremuzyan R, Park K, Pasyuk E, Peng P, Phelps W, Pisano S, Pogorelko O, Price JW, Procureur S, Protopopescu D, Puckett AJR, Raue BA, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schumacher RA, Seder E, Sharabian YG, Simonyan A, Skorodumina I, Smith GD, Sparveris N, Stankovic I, Stepanyan S, Strakovsky II, Strauch S, Sytnik V, Taiuti M, Tian Y, Torayev B, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Weinstein LB, Wood MH, Zachariou N, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2016, Target and beam-target spin asymmetries in exclusive π<SUP>+</SUP> and π<SUP>-</SUP> electroproduction with 1.6-to 5.7-GeV electrons, PHYSICAL REVIEW C, Vol: 94, ISSN: 2469-9985

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• Citations: 5

Zheng X, Adhikari KP, Bosted P, Deur A, Drozdov V, El Fassi L, Kang H, Kovacs K, Kuhn S, Long E, Phillips SK, Ripani M, Slifer K, Smith LC, Adikaram D, Akbar Z, Amaryan MJ, Pereira SA, Asryan G, Avakian H, Badui RA, Ball J, Baltzell NA, Battaglieri M, Batourine V, Bedlinskiy I, Biselli AS, Briscoe WJ, Bueltmann S, Burkert VD, Carman DS, Celentano A, Chandavar S, Charles G, Chen J-P, Chetry T, Choi S, Ciullo G, Clark L, Colaneri L, Cole PL, Compton N, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Djalali C, Dodge GE, Dupre R, Egiyan H, El Alaoui A, Elouadrhiri L, Eugenio P, Fanchini E, Fedotov G, Fersch R, Filippi A, Fleming JA, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Gleason C, Golovach E, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Hanretty C, Harrison N, Hattawy M, Hicks K, Holtrop M, Hughes SM, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jiang H, Jo HS, Joosten S, Keller D, Khachatryan G, Khandaker M, Kim A, Kim W, Klein FJ, Kubarovsky V, Lanza L, Lenisa P, Livingston K, MacGregor IJD, Markov N, McKinnon B, Mirazita M, Mokeev V, Movsisyan A, Munevar E, Camacho CM, Murdoch G, Nadel-Turonski P, Net LA, Ni A, Niccolai S, Niculescu G, Niculescu I, Osipenko M, Ostrovidov AI, Paolone M, Paremuzyan R, Park K, Pasyuk E, Peng P, Pisano S, Pogorelko O, Price JW, Puckett AJR, Raue BA, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schumacher RA, Sharabian YG, Skorodumina I, Smith GD, Sokhan D, Sparveris N, Stankovic I, Strakovsky II, Strauch S, Taiuti M, Tian Y, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Weinstein LB, Wood MH, Zachariou N, Zhang J, Zonta Iet al., 2016, Measurement of target and double-spin asymmetries for the (<i>e</i>)over-right-arrow (<i>p</i>)over-right-arrow → <i>e</i>π<SUP>+</SUP>(<i>n</i>) reaction in the nucleon resonance region at low <i>Q</i><SUP>2</SUP>, PHYSICAL REVIEW C, Vol: 94, ISSN: 2469-9985

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• Citations: 6

Petrov PK, Zou B, Walker C, Wang K, Tileli V, Shaforost O, Harrison N, Klein N, Alford Net al., 2016, Growth of Epitaxial Oxide Thin Films on Graphene, Scientific Reports, Vol: 6, ISSN: 2045-2322

The transfer process of graphene onto the surface of oxide substrates is well known.However, for many devices, we require high quality oxide thin films on the surface ofgraphene. This step is not understood. It is not clear why the oxide should adopt theepitaxy of the underlying oxide layer when it is deposited on graphene where there isno lattice match. To date there has been no explanation or suggestion of mechanismswhich clarify this step. Here we show a mechanism, supported by first principlessimulation and structural characterisation results, for the growth of oxide thin films ongraphene. We describe the growth of epitaxial SrTiO3 (STO) thin films on a grapheneand show that local defects in the graphene layer (e.g. grain boundaries) act as bridgepillarspots that enable the epitaxial growth of STO thin films on the surface of thegraphene layer. This study, and in particular the suggestion of a mechanism forepitaxial growth of oxides on graphene, offers new directions to exploit thedevelopment of oxide/graphene multilayer structures and devices.

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Carta D, Salaoru I, Khiat A, Regoutz A, Mitterbauer C, Harrison NM, Prodromakis Tet al., 2016, Investigation of the Switching Mechanism in TiO2-Based RRAM: A Two-Dimensional EDX Approach, ACS Applied Materials & Interfaces, Vol: 8, Pages: 19605-19611, ISSN: 1944-8244

The next generation of nonvolatile memory storage may well be based on resistive switching in metal oxides. TiO2 as transition metal oxide has been widely used as active layer for the fabrication of a variety of multistate memory nanostructure devices. However, progress in their technological development has been inhibited by the lack of a thorough understanding of the underlying switching mechanisms. Here, we employed high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) combined with two-dimensional energy dispersive X-ray spectroscopy (2D EDX) to provide a novel, nanoscale view of the mechanisms involved. Our results suggest that the switching mechanism involves redistribution of both Ti and O ions within the active layer combined with an overall loss of oxygen that effectively render conductive filaments. Our study shows evidence of titanium movement in a 10 nm TiO2 thin-film through direct EDX mapping that provides a viable starting point for the improvement of the robustness and lifetime of TiO2-based resistive random access memory (RRAM).

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Korotana RK, Mallia G, Fortunato NM, Amaral JS, Gercsi Z, Harrison NMet al., 2016, A combined thermodynamics and first principles study of the electronic, lattice and magnetic contributions to the magnetocaloric effect in La0.75Ca0.25MnO3, Journal of Physics D: Applied Physics, Vol: 49, ISSN: 0022-3727

Manganites with the formula La1−x Ca x MnO3 for 0.2  <  x  <  0.5 undergo a magnetic field driven transition from a paramagnetic to ferromagnetic state, which is accompanied by changes in the lattice and electronic structure. An isotropic expansion of the La0.75Ca0.25MnO3 cell at the phase transition has been observed experimentally. It is expected that there will be a large entropy change at the transition due to its first order nature. Doped lanthanum manganite (LMO) is therefore of interest as the active component in a magnetocaloric cooling device. However, the maximum obtained value for the entropy change in Ca-doped manganites merely reaches a moderate value in the field of a permanent magnet. The present theoretical work aims to shed light on this discrepancy. A combination of finite temperature statistical mechanics and first principles theory is applied to determine individual contributions to the total entropy change of the system by treating the electronic, lattice and magnetic components independently. Hybrid-exchange density functional (B3LYP) calculations and Monte Carlo simulations are performed for La0.75Ca0.25MnO3. Through the analysis of individual entropy contributions, it is found that the electronic and lattice entropy changes oppose the magnetic entropy change. The results highlighted in the present work demonstrate how the electronic and vibrational entropy contributions can have a deleterious effect on the total entropy change and thus the potential cooling power of doped LMO in a magnetocaloric device.

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Camino B, Noakes TCQ, Surman M, Seddon EA, Harrison NMet al., 2016, Photoemission simulation for photocathode design: theory and application to copper and silver surfaces, Computational Materials Science, Vol: 122, Pages: 331-340, ISSN: 0927-0256

Obtaining a bright and low emittance electron beam directly from the photocathode is mandatory in order to design high performance free electron lasers (FELs). To achieve this goal a clear understanding of how the emission process is influenced by structure, morphology and composition of the photocathode surface is needed. This is difficult from an experimental point of view because often the atomic scale details of the surface whose emission has been measured are unknown. A predictive theoretical approach capable of determining the effects of surface structure on emission is therefore or great interest. A model to extend the well known three step model (as proposed by Berglund and Spicer) to surface calculations is discussed in this paper. It is based on a layer-by-layer decomposition of the surface electronic structure that can be calculated through reliable and efficient DFT calculations. The advantage of this approach with respect to other existing photoemission calculations is being able to correlate directly the photoemission to the electronic, atomic and chemical structure of the surface. The proposed approach retains, therefore, the simple chemical intuition in the study of surface modifications and their effect on the photoemission. The approach is validated in calculations of the emission from clean copper and silver surfaces. The ability of the model to simulate the change in photoemission in response to adsorbates is tested by simulating monolayers of oxygen, hydrogen and lithium on the copper (1 1 1) surface.

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Busayaporn W, Duncan DA, Allegretti F, Wander A, Bech M, Moller PJ, Doyle BP, Harrison NM, Thornton G, Lindsay Ret al., 2016, Structure of a Model Dye/Titania Interface: Geometry of Benzoate on Rutile-TiO2 (110)(1 × 1), Journal of Physical Chemistry C, Vol: 120, Pages: 14690-14698, ISSN: 1932-7455

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Dickson R, Schumacher RA, Adhikari KP, Akbar Z, Amaryan MJ, Pereira SA, Badui RA, Ball J, Battaglieri M, Batourine V, Bedlinskiy I, Biselli A, Boiarinov S, Briscoe WJ, Burkert VD, Cao T, Carman DS, Celentano A, Chandavar S, Charles G, Chetry T, Ciullo G, Colaneri L, Cole PL, Compton N, Contalbrigo M, Cortes O, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Deur A, Djalali C, Dugger M, Dupre R, El Alaoui A, El Fassi L, Eugenio P, Fanchini E, Fedotov G, Filippi A, Fleming JA, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Gothe RW, Griffioen KA, Guo L, Hafidi K, Hakobyan H, Hanretty C, Harrison N, Hattawy M, Holtrop M, Hicks K, Hughes SM, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jiang H, Jo HS, Joosten S, Keller D, Khachatryan G, Khandaker M, Kim A, Kim W, Klein FJ, Kubarovsky V, Kuleshov SV, Lanza L, Lenisa P, Livingston K, Lu HY, MacGregor IJD, Mattione P, McKinnon B, Meyer CA, Mirazita M, Markov N, Mokeev V, Moriya K, Munevar E, Murdoch G, Nadel-Turonski P, Net LA, Ni A, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Phelps W, Pisano S, Pogorelko O, Price JW, Prok Y, Puckett AJR, Raue BA, Ripani M, Rizzo A, Rosner G, Roy P, Salgado C, Seder E, Sharabian YG, Skorodumina I, Smith ES, Smith GD, Sober D, Sokhan D, Sparveris N, Stepanyan S, Strakovsky II, Stankovic I, Strauch S, Sytnik V, Taiuti M, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Weygand D, Wood MH, Zachariou N, Zana L, Zhang J, Zonta Iet al., 2016, Photoproduction of the <i>f</i>₁(1285) meson, PHYSICAL REVIEW C, Vol: 93, ISSN: 2469-9985

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• Citations: 25

Paterson CA, Ireland DG, Livingston K, McKinnon B, Adhikari KP, Adikaram D, Akbar Z, Amaryan M, Pereira SA, Badui RA, Ball J, Baltzell NA, Battaglieri M, Bedlinskiy I, Biselli A, Briscoe WJ, Brooks WK, Burkert VD, Carman DS, Celentano A, Chetry T, Ciullo G, Clark L, Colaneri L, Cole PL, Compton N, Contalbrigo M, Cortes O, Crede V, D'Angelo A, De Vita R, Deur A, Djalali C, Dugger M, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Fanchini E, Fedotov G, Filippi A, Fleming JA, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Glazier DI, Gleason C, Gothe RW, Griffioen KA, Guo L, Hafidi K, Harrison N, Hattawy M, Hicks K, Holtrop M, Hughes SM, Ilieva Y, Ishkhanov BS, Isupov EL, Jenkins D, Jiang H, Joo K, Keller D, Khachatryan G, Khandaker M, Kim W, Klein FJ, Kubarovsky V, Kuleshov SV, Lanza L, Lenisa P, Lu HY, MacGregor IJD, Markov N, Mattione P, Mayer CA, McCracken ME, Mokeev V, Movsisyan A, Munevar E, Camacho CM, Nadel-Turonski P, Net LA, Ni A, Niccolai S, Niculescu G, Osipenko M, Ostrovidov AI, Paremuzyan R, Park K, Pasyuk E, Peng P, Pisano S, Pogorelko O, Price JW, Prok Y, Protopopescu D, Puckett AJR, Raue BA, Ripani M, Ritchie BG, Rizzo A, Rosner G, Roy P, Sabatie F, Salgado C, Schumacher RA, Seder E, Sharabian YG, Skorodumina I, Smith GD, Sober DI, Sokhan D, Sparveris N, Strakovsky II, Strauch S, Sytnik V, Taiuti M, Torayev B, Tucker R, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Zachariou N, Zana L, Zhang J, Zonta Iet al., 2016, Photoproduction of Λ and Σ<SUP>0</SUP> hyperons using linearly polarized photons, PHYSICAL REVIEW C, Vol: 93, ISSN: 2469-9985

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• Citations: 44

Henderson CMB, Pearce CI, Charnock JM, Harrison RJ, Rosso KMet al., 2016, An X-ray magnetic circular dichroism (XMCD) study of Fe ordering in a synthetic MgAl₂O₄-Fe₃O₄ (spinel-magnetite) solid-solution series: Implications for magnetic properties and cation site ordering, AMERICAN MINERALOGIST, Vol: 101, Pages: 1373-1388, ISSN: 0003-004X

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• Citations: 8

Martínez-Casado R, Chen VH, Mallia G, Harrison NMet al., 2016, A hybrid-exchange density functional study of the bonding and electronic structure in bulk CuFeS2, Journal of Chemical Physics, Vol: 144, ISSN: 1089-7690

The geometric, electronic, and magnetic properties of bulk chalcopyrite CuFeS2 have been investigated using hybrid-exchange density functional theory calculations. The results are compared with available theoretical and experimental data. The theoretical description of the bonding and electronic structure in CuFeS2 is analyzed in detail and compared to those computed for chalcocite (CuS2) and greigite (Fe3S4). In particular, the behavior of the 3d electrons of Fe3+ is discussed in terms of the Hubbard-Anderson model in the strongly correlated regime and found to be similarly described in both materials by an on-site Coulomb repulsion (U) of ∼8.9 eV and a transfer integral (t) of ∼0.3 eV.

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Jo HS, Girod FX, Avakian H, Burkert VD, Garcon M, Guidal M, Kubarovsky V, Niccolai S, Stoler P, Adhikari KP, Adikaram D, Amaryan MJ, Anderson MD, Pereira SA, Ball J, Baltzell NA, Battaglieri M, Batourine V, Bedlinskiy I, Biselli AS, Boiarinov S, Briscoe WJ, Brooks WK, Carman DS, Celentano A, Chandavar S, Charles G, Colaneri L, Cole PL, Compton N, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Deur A, Djalali C, Dupre R, El Alaoui A, El Fassi L, Elouadrhiri L, Fedotov G, Fegan S, Filippi A, Fleming JA, Garillon B, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Goetz JT, Golovatch E, Gothe RW, Griffioen KA, Guegan B, Guler N, Guo L, Hafidi K, Hakobyan H, Harrison N, Hattawy M, Hicks K, Saylor NH, Ho D, Holtrop M, Hughes SM, Ilieva Y, Ireland DG, Ishkhanov BS, Jenkins D, Joo K, Joosten S, Keller D, Khachatryan G, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Kuhn SE, Kuleshov SV, Lenisa P, Livingston K, Lu HY, MacGregor IJD, McKinnon B, Meziani ZE, Mirazita M, Mokeev V, Montgomery RA, Moutarde H, Movsisyan A, Munevar E, Camacho CM, Nadel-Turonski P, Net LA, Niculescu G, Osipenko M, Ostrovidov AI, Paolone M, Park K, Pasyuk E, Phillips JJ, Pisano S, Pogorelko O, Price JW, Procureur S, Prok Y, Puckett AJR, Raue BA, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RA, Seder E, Simonyan A, Skorodumina I, Smith GD, Sokhan D, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Sytnik V, Tian Y, Tkachenko S, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Weinstein LB, Wood MH, Zachariou N, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2015, Cross Sections for the Exclusive Photon Electroproduction on the Proton and Generalized Parton Distributions, PHYSICAL REVIEW LETTERS, Vol: 115, ISSN: 0031-9007

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• Citations: 63

Strauch S, Briscoe WJ, Doering M, Klempt E, Nikonov VA, Pasyuk E, Roenchen D, Sarantsev AV, Strakovsky I, Workman R, Adhikari KP, Adikaram D, Anderson MD, Pereira SA, Anisovich AV, Badui RA, Ball J, Batourine V, Battaglieri M, Bedlinskiy I, Benmouna N, Biselli AS, Brock J, Brooks WK, Burkert VD, Cao T, Carlin C, Carman DS, Celentano A, Chandavar S, Charles G, Colaneri L, Cole PL, Compton N, Contalbrigo M, Cortes O, Crede V, Dashyan N, D'Angelo A, De Vita R, De Sanctis E, Deur A, Djalali C, Dugger M, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Filippi A, Fleming JA, Forest TA, Fradi A, Gevorgyan N, Ghandilyan Y, Giovanetti KL, Girod FX, Glazier DI, Gohn W, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Guo L, Hafidi K, Hakobyan H, Hanretty C, Harrison N, Hattawy M, Hicks K, Ho D, Holtrop M, Hughes SM, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jiang H, Jo HS, Joo K, Joosten S, Keith CD, Keller D, Khachatryan G, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Kubarovsky V, Kuhn SE, Lenisa P, Livingston K, Lu HY, MacGregor IJD, Markov N, McKinnon B, Meekins DG, Meyer CA, Mokeev V, Montgomery RA, Moody CI, Moutarde H, Movsisyan A, Munevar E, Camacho CM, Nadel-Turonski P, Net LA, Niccolai S, Niculescu G, Niculescu I, O'Rielly G, Osipenko M, Ostrovidov AI, Park K, Peng P, Phelps W, Phillips JJ, Pisano S, Pogorelko O, Pozdniakov S, Price JW, Procureur S, Prok Y, Protopopescu D, Puckett AJR, Raue BA, Ripani M, Ritchie BG, Rizzo A, Rosner G, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RA, Seder E, Seely ML, Senderovich I, Sharabian YG, Simonyan A, Skorodumina I, Smith GD, Sober DI, Sokhan D, Sparveris N, Stoler P, Stepanyan S, Sytnik V, Taiuti M, Tian Y, Trivedi A, Tucker R, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Wood MH, Zachariou N, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2015, First measurement of the polarization observable E in the (p)over-right-arrow((γ)over-right-arrow, π<SUP>+</SUP>)n reaction up to 2.25 GeV, PHYSICS LETTERS B, Vol: 750, Pages: 53-58, ISSN: 0370-2693

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• Citations: 25

Inkpen MS, Du S, Hildebrand M, White AJP, Harrison NM, Albrecht T, Long NJet al., 2015, The unusual redox properties of fluoroferrocenes revealed through a comprehensive study of the haloferrocenes, Organometallics, Vol: 34, Pages: 5461-5469, ISSN: 1520-6041

We report the synthesis and full characterization of the entire haloferrocene (FcX) and 1,1′-dihaloferrocene (fcX2) series (X = I, Br, Cl, F; Fc = ferrocenyl, fc = ferrocene-1,1′-diyl). Finalization of this simple, yet intriguing set of compounds has been delayed by synthetic challenges associated with the incorporation of fluorine substituents. Successful preparation of fluoroferrocene (FcF) and 1,1′-difluoroferrocene (fcF2) were ultimately achieved using reactions between the appropriate lithiated ferrocene species and N-fluorobenzenesulfonimide (NFSI). The crude reaction products, in addition to those resulting from analogous preparations of chloroferrocene (FcCl) and 1,1′-dichloroferrocene (fcCl2), were utilized as model systems to probe the limits of a previously reported “oxidative purification” methodology. From this investigation and careful solution voltammetry studies, we find that the fluorinated derivatives exhibit the lowest redox potentials of each of the FcX and fcX2 series. This counterintuitive result is discussed with reference to the spectroscopic, structural, and first-principles calculations of these and related materials.

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Guler N, Fersch RG, Kuhn SE, Bosted P, Griffioen KA, Keith C, Minehart R, Prok Y, Adhikari KP, Adikaram D, Amaryan MJ, Anderson MD, Pereira SA, Avakian H, Ball J, Battaglieri M, Batourine V, Bedlinskiy I, Biselli A, Briscoe WJ, Brooks WK, Bueltmann S, Burkert VD, Carman DS, Celentano A, Chandavar S, Charles G, Colaneri L, Cole PL, Contalbrigo M, Crabb D, Crede V, D'Angelo A, Dashyan N, Deur A, Djalali C, Dodge GE, Dupre R, El Alaoui A, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Filippi A, Fleming JA, Forest TA, Garillon B, Garcon M, Gevorgyan N, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Golovatch E, Gothe RW, Guidal M, Guo L, Hafidi K, Hakobyan H, Harrison N, Hattawy M, Hicks K, Ho D, Holtrop M, Hughes SM, Hyde CE, Ireland DG, Ishkhanov BS, Isupov EL, Jo HS, Joo K, Joosten S, Keller D, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Kubarovsky V, Kuleshov SV, Livingston K, Lu HY, Mayer M, MacGregor IJD, McKinnon B, Mirazita M, Mokeev V, Montgomery RA, Movsisyan A, Camacho CM, Nadel-Turonski P, Net LA, Niculescu I, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Pisano S, Pogorelko O, Price JW, Procureur S, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RA, Seder E, Simonyan A, Skorodumina I, Sokhan D, Sparveris N, Strakovsky II, Strauch S, Sytnik V, Tian Y, Tkachenko S, Ungaro M, Voutier E, Walford NK, Wei X, Weinstein LB, Wood MH, Zachariou N, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2015, Precise determination of the deuteron spin structure at low to moderate <i>Q</i><SUP>2</SUP> with CLAS and extraction of the neutron contribution, PHYSICAL REVIEW C, Vol: 92, ISSN: 0556-2813

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• Citations: 29

Chen VH-Y, Mallia G, Martinez-Casado R, Harrison NMet al., 2015, Surface morphology of CuFeS2: The stability of the polar (112)/((112)over-bar) surface pair, Physical Review B, Vol: 92, ISSN: 1550-235X

The reconstruction and energetics for a range of chalcopyrite (CuFeS2) surfaces have been investigated using hybrid-exchange density functional theory. The stable nonpolar surfaces in increasing order of surface energy are (110), (102), and (114). In addition, the polar (112)/(112¯¯¯¯¯) surface pair was found to be remarkably stable with a surface formation energy that is only slightly higher than that of the (110) surface. The stability of (112)/(112¯¯¯¯¯) can be attributed to a combination of geometric and electronic mechanisms that result in the suppression of the electrostatic dipole perpendicular to the surface. Defect formation is a third mechanism that can further stabilize the (112)/(112¯¯¯¯¯) surface pair to an extent that it is thermodynamically preferred over the (110) surface. The stability of (112)/(112¯¯¯¯¯) means that regardless of the growth conditions, (112) and (112¯¯¯¯¯) facets are expected to have a significant presence in the surface morphology of CuFeS2.

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Ahmad EA, Tileli V, Kramer D, Mallia G, Stoerzinger KA, Shao-Horn Y, Kucernak AR, Harrison NMet al., 2015, Optimizing Oxygen Reduction Catalyst Morphologies from First Principles, Journal of Physical Chemistry C, Vol: 119, Pages: 16804-16810, ISSN: 1932-7455

Catalytic activity of perovskites for oxygen reduction (ORR) wasrecently correlated with bulk d-electron occupancy of the transition metal. Weexpand on the resultant model, which successfully reproduces the high activity ofLaMnO3 relative to other perovskites, by addressing catalyst surface morphology asan important aspect of the optimal ORR catalyst. The nature of reaction sites onlow index surfaces of orthorhombic (Pnma) LaMnO3 is established from FirstPrinciples. The adsorption of O2 is markedly influenced by local geometry andstrong electron correlation. Only one of the six reactions sites that result from experimentally confirmed symmetry-breakingJahn−Teller distortions is found to bind O2 with an intermediate binding energy while facilitating the formation of superoxide, animportant ORR intermediate in alkaline media. As demonstrated here for LaMnO3, rational design of the catalyst morphology topromote specific active sites is a highly effective optimization strategy for advanced functional ORR catalysts.

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Webster R, Bernasconi L, Harrison NM, 2015, Optical properties of alkali halide crystals from all-electron hybrid TD-DFT calculations., Journal of Chemical Physics, Vol: 142, Pages: 214705-214705, ISSN: 1089-7690

We present a study of the electronic and optical properties of a series of alkali halide crystals AX, with A = Li, Na, K, Rb and X = F, Cl, Br based on a recent implementation of hybrid-exchange time-dependent density functional theory (TD-DFT) (TD-B3LYP) in the all-electron Gaussian basis set code CRYSTAL. We examine, in particular, the impact of basis set size and quality on the prediction of the optical gap and exciton binding energy. The formation of bound excitons by photoexcitation is observed in all the studied systems and this is shown to be correlated to specific features of the Hartree-Fock exchange component of the TD-DFT response kernel. All computed optical gaps and exciton binding energies are however markedly below estimated experimental and, where available, 2-particle Green's function (GW-Bethe-Salpeter equation, GW-BSE) values. We attribute this reduced exciton binding to the incorrect asymptotics of the B3LYP exchange correlation ground state functional and of the TD-B3LYP response kernel, which lead to a large underestimation of the Coulomb interaction between the excited electron and hole wavefunctions. Considering LiF as an example, we correlate the asymptotic behaviour of the TD-B3LYP kernel to the fraction of Fock exchange admixed in the ground state functional cHF and show that there exists one value of cHF (∼0.32) that reproduces at least semi-quantitatively the optical gap of this material.

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Parkes MA, Refson K, d'Avezac M, Offer GJ, Brandon NP, Harrison NMet al., 2015, Chemical descriptors of yttria-stabilized zirconia at low defect concentration: an ab initio study., Journal of Physical Chemistry A, Vol: 119, Pages: 6412-6420, ISSN: 1520-5215

Yttria-stabilized zirconia (YSZ) is an important oxide ion conductor with applications in solid oxide fuel cells (SOFCs) and oxygen sensing devices. Doping the cubic phase of zirconia (c-ZrO2) with yttria (Y2O3) is isoelectronic, as two Zr(4+) ions are replaced by two Y(3+) ions, plus a charge compensating oxygen vacancy (Ovac). Typical doping concentrations include 3, 8, 10, and 12 mol %. For these concentrations, and all below 40 mol %, no phase with long-range order has been observed in either X-ray or neutron diffraction experiments. The prediction of local defect structure and the interaction between defects is therefore of great interest. This has not been possible to date as the number of possible defect topologies is very large and to perform reliable total energy calculations for all of them would be prohibitively expensive. Previous theoretical studies have only considered a selection of representative structures. In this study, a comprehensive search for low-energy defect structures using a combined classical modeling and density functional theory approach is used to identify the low-energy isolated defect structures at the dilute limit, 3.2 mol %. Through analysis of energetics computed using the best available Born-Mayer-Huggins empirical potential model, a point charge model, DFT, and a local strain energy estimated in the harmonic approximation, the main chemical and physical descriptors that correlate to the low-energy DFT structures are discussed. It is found that the empirical potential model reproduces a general trend of increasing DFT energetics across a series of locally strain relaxed structures but is unreliable both in predicting some incorrect low-energy structures and in finding some metastable structures to be unstable. A better predictor of low-energy defect structures is found to be the total electrostatic energy of a simple point charge model calculated at the unrelaxed geometries of the defects. In addition, the strain relaxation energ

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Zachariou N, Ilieva Y, Berman BL, Ivanov NY, Sargsian MM, Avakian R, Feldman G, Nadel-Turonski P, Adhikari KP, Adikaram D, Anderson MD, Pereira SA, Avakian H, Badui RA, Baltzell NA, Battaglieri M, Baturin V, Bedlinskiy I, Biselli AS, Briscoe WJ, Brooks WK, Burkert VD, Cao T, Carman DS, Celentano A, Chandavar S, Charles G, Colaneri L, Cole PL, Compton N, Contalbrigo M, Cortes O, Crede V, D'Angelo A, De Vita R, De Sanctis E, Deur A, Djalali C, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Elouadrhiri L, Fedotov G, Fegan S, Filippi A, Fleming JA, Forest TA, Fradi A, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Glazier DI, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Hafidi K, Hanretty C, Harrison N, Hattawy M, Hicks K, Ho D, Holtrop M, Hughes SM, Ireland DG, Ishkhanov BS, Isupov EL, Jiang H, Jo HS, Joo K, Keller D, Khachatryan G, Khandaker M, Kim A, Kim W, Klein FJ, Kubarovsky V, Lenisa P, Livingston K, Lu HY, MacGregor IJD, Markov N, Mattione PT, McKinnon B, Mineeva T, Mirazita M, Mokeeev VI, Montgomery RA, Moutarde H, Camacho CM, Net LA, Niccolai S, Niculescu G, Niculescu I, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Phelps W, Phillips JJ, Pisano S, Pogorelko O, Pozdniakov S, Price JW, Procureur S, Prok Y, Protopopescu D, Puckett AJR, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RA, Seder E, Senderovich I, Sharabian YG, Skorodumina I, Smith GD, Sober DI, Sokhan D, Sparveris N, Stepanyan S, Strauch S, Sytnik V, Taiuti M, Tian Y, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts D, Wei X, Wood MH, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2015, Determination of the beam-spin asymmetry of deuteron photodisintegration in the energy region <i>E</i>_γ=1.1-2.3 GeV, PHYSICAL REVIEW C, Vol: 91, ISSN: 0556-2813

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Kucernak ARJ, 2015, Electrochemical Characterization and Quantified Surface Termination Obtained by LEIS and XPS of Orthorhombic and Rhombohedral LaMnO₃ Powders, Journal of Physical Chemistry C, Vol: 119, Pages: 12209-12217, ISSN: 1932-7455

LaMnO3 powder synthesized by glycine combustion synthesis with the rhombohedral and orthorhombic structures has been characterized by the combination of low energy ion scattering (LEIS) and X-ray photoelectron spectroscopy (XPS), while the electrocatalytic activity for the oxygen reduction reaction is measured with the rotating disk electrode (RDE) method. Quantification of the surface terminations obtained by LEIS suggests that the orthorhombic LaMnO3 crystallites are near thermodynamic equilibrium as surface atomic ratios compare well with those of equilibrium morphologies computed by a Wulff construction based on computed surface energies. Both rhombohedral and orthorhombic structures present the same La/Mn atomic ratio on the surface. Electrochemical activity of the two structures is found to be the same within the error bar of our measurements. This result is in disagreement with results previously reported on the activity of the two structures obtained by the coprecipitation method [Suntivich et al. Nat. Chem. 2011, 3 (7), 546], and it indicates that the preparation method and the resulting surface termination might play a crucial role for the activity of perovskite catalysts.

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Adikaram D, Rimal D, Weinstein LB, Raue B, Khetarpal P, Bennett RP, Arrington J, Brooks WK, Adhikari KP, Afanasev AV, Amaryan MJ, Anderson MD, Pereira SA, Avakian H, Ball J, Battaglieri M, Bedlinskiy I, Biselli AS, Bono J, Boiarinov S, Briscoe WJ, Burkert VD, Carman DS, Careccia S, Celentano A, Chandavar S, Charles G, Colaneri L, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanetis E, Deur A, Djalali C, Dodge GE, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Filippi A, Fleming JA, Fradi A, Garillon B, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gohn W, Golovatch E, Gothe RW, Griffioen KA, Guegan B, Guidal M, Guo L, Hafidi K, Hakobyan H, Hanretty C, Harrison N, Hattawy M, Hicks K, Holtrop M, Hughes SM, Hyde CE, Ilieva Y, Ireland DG, Ishkhanov BS, Jenkins D, Jiang H, Jo HS, Joo K, Joosten S, Kalantarians N, Keller D, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Koirala S, Kubarovsky V, Kuhn SE, Livingston K, Lu HY, MacGregor IJD, Markov N, Mattione P, Mayer M, McKinnon B, Mestayer MD, Meyer CA, Mirazita M, Mokeev V, Montgomery RA, Moody CI, Moutarde H, Movsisyan A, Camacho CM, Nadel-Turonski P, Niccolai S, Niculescu G, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Pena C, Pisano S, Pogorelko O, Price JW, Procureur S, Prok Y, Protopopescu D, Puckett AJR, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RRA, Seder E, Sharabian YG, Simonyan A, Skorodumina I, Smith ES, Smith GD, Sober DI, Sokhan D, Sparveris N, Stepanyan S, Stoler P, Strauch S, Sytnik V, Taiuti M, Tian Y, Trivedi A, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Wood MH, Zachariou N, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2015, Towards a Resolution of the Proton Form Factor Problem: New Electron and Positron Scattering Data, PHYSICAL REVIEW LETTERS, Vol: 114, ISSN: 0031-9007

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• Citations: 71

Seder E, Biselli A, Pisano S, Niccolai S, Smith GD, Joo K, Adhikari K, Amaryan MJ, Anderson MD, Pereira SA, Avakian H, Battaglieri M, Bedlinskiy I, Bono J, Boiarinov S, Bosted P, Briscoe W, Brock J, Brooks WK, Bueltmann S, Burkert VD, Carman DS, Carlin C, Celentano A, Chandavar S, Charles G, Colaneri L, Cole PL, Contalbrigo M, Crabb D, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Deur A, Djalali C, Doughty D, Dupre R, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Filippi A, Fleming JA, Fradi A, Garillon B, Garcon M, Gevorgyan N, Ghandilyan Y, Giovanetti KL, Girod FX, Goetz JT, Gohn W, Gothe RW, Griffioen KA, Guegan B, Guidal M, Guo L, Hafidi K, Hakobyan H, Hanretty C, Harrison N, Hattawy M, Saylor NH, Holtrop M, Hughes SM, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jo HS, Joosten S, Keith CD, Keller D, Khachatryan G, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Koirala S, Kubarovsky V, Kuhn SE, Lenisa P, Livingston K, Lu HY, MacGregor IJD, Markov N, Mayer M, McKinnon B, Meekins DG, Mineeva T, Mirazita M, Mokeev V, Montgomery R, Moody CI, Moutarde H, Movsisyan A, Camacho CM, Nadel-Turonski P, Niculescu I, Osipenko M, Ostrovidov AI, Paolone M, Pappalardo LL, Park K, Park S, Pasyuk E, Peng P, Phelps W, Pogorelko O, Price JW, Prok Y, Protopopescu D, Puckett AJR, Ripani M, Rizzo A, Rosner G, Rossi P, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RA, Senderovich I, Simonyan A, Skorodumina I, Sokhan D, Sparveris N, Stepanyan S, Stoler P, Strakovsky II, Strauch S, Sytnik V, Taiuti M, Tang W, Tian Y, Ungaro M, Voskanyan H, Voutier E, Walford NK, Watts DP, Wei X, Weinstein LB, Wood MH, Zachariou N, Zana L, Zhang J, Zonta Iet al., 2015, Longitudinal Target-Spin Asymmetries for Deeply Virtual Compton Scattering, PHYSICAL REVIEW LETTERS, Vol: 114, ISSN: 0031-9007

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• Citations: 41

Tautschnig MP, Blanca-Romero A, Patel M, Harrison NMet al., 2015, Study of corrosion scale formation from quantum mechanics simulations to a continuum model

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Tseng H-H, Serri M, Harrison NM, Heutz Set al., 2015, Thin film properties of tetracyanoquinodimethane (TCNQ) with novel templating effects, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 8694-8699, ISSN: 2050-7526

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• Citations: 8

Martinez-Casado R, Usvyat D, Mallia G, Maschio L, Casassa S, Ellis J, Schuetz M, Harrison NMet al., 2014, Diffraction of helium on MgO(100) surface calculated from first-principles, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 16, Pages: 21106-21113, ISSN: 1463-9076

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• Citations: 10

Patel M, Sanches FF, Mallia G, Harrison NMet al., 2014, A quantum mechanical study of water adsorption on the (110) surfaces of rutile SnO₂ and TiO₂: investigating the effects of intermolecular interactions using hybrid-exchange density functional theory, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 16, Pages: 21002-21015, ISSN: 1463-9076

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• Citations: 20

Bedlinskiy I, Kubarovsky V, Niccolai S, Stoler P, Adhikari KP, Anderson MD, Pereira SA, Avakian H, Ball J, Baltzell NA, Battaglieri M, Batourine V, Biselli AS, Boiarinov S, Bono J, Briscoe WJ, Brooks WK, Burkert VD, Carman DS, Celentano A, Chandavar S, Colaneri L, Cole PL, Contalbrigo M, Cortes O, Crede V, D'Angelo A, Dashyan N, De Vita R, De Sanctis E, Deur A, Djalali C, Doughty D, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Fegan S, Fleming JA, Forest TA, Garillon B, Garcon M, Gavalian G, Gevorgyan N, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Golovatch E, Gothe RW, Griffioen KA, Guegan B, Guidal M, Guo L, Hafidi K, Hakobyan H, Harrison N, Hattawy M, Hicks K, Holtrop M, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jo HS, Joo K, Keller D, Khandaker M, Kim A, Kim W, Klein A, Klein FJ, Koirala S, Kuhn SE, Kuleshov SV, Lenisa P, Levine WI, Livingston K, Lu HY, MacGregor IJD, Markov N, Mayer M, McKinnon B, Mirazita M, Mokeev V, Montgomery RA, Moody CI, Moutarde H, Movsisyan A, Camacho CM, Nadel-Turonski P, Niculescu I, Osipenko M, Ostrovidov AI, Pappalardo LL, Park K, Park S, Pasyuk E, Phelps E, Phelps W, Phillips JJ, Pisano S, Pogorelko O, Price JW, Prok Y, Protopopescu D, Procureur S, Puckett AJR, Raue BA, Ripani M, Ritchie BG, Rizzo A, Rossi P, Roy P, Sabatie F, Salgado C, Schott D, Schumacher RA, Seder E, Senderovich I, Sharabian YG, Simonyan A, Smith GD, Sober DI, Sokhan D, Stepanyan SS, Strauch S, Sytnik V, Tang W, Tian Y, Ungaro M, Vlassov AV, Voskanyan H, Voutier E, Walford NK, Watts D, Wei X, Weinstein LB, Yurov M, Zachariou N, Zana L, Zhang J, Zhao ZW, Zonta Iet al., 2014, Exclusive π<SUP>0</SUP> electroproduction at <i>W</i> &gt; 2 GeV with CLAS (vol 90, 025205, 2014), PHYSICAL REVIEW C, Vol: 90, ISSN: 0556-2813

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• Citations: 5