Imperial College London
Dr Perkins

Dr Perkins

Faculty of Natural Sciences, Department of Physics

Casual - Academic Research
 
 
 
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Contact

 

+44 (0)20 7594 7609g.perkins

 
 
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Location

 

1002Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

98 results found

Cohen LF, Zhukov AA, Perkins GK, Totty J, Caplin AD, Kupfer H, Wolf TH, Wirth Get al., 1997, Effect of columnar defects on the vortex dynamics in a twinned YBCO 123 crystal, International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V, Publisher: ELSEVIER SCIENCE BV, Pages: 2227-2228, ISSN: 0921-4534

Conference paper

Perkins GK, Zhukov AA, Bugoslavsky YV, Cohen LF, Caplin AD, Wolf Tet al., 1997, Anomalous behaviour of vortex creep in twinned YBCO crystals, International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V, Publisher: ELSEVIER SCIENCE BV, Pages: 2235-2236, ISSN: 0921-4534

Conference paper

Totty JT, Cohen LF, Perkins GK, Kadowaki K, Wirth G, Paul DM, Balakrishnan Get al., 1997, Effect of columnar defects on the vortex dynamics in BSCCO 2212 single crystals, International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V, Publisher: ELSEVIER SCIENCE BV, Pages: 2187-2188, ISSN: 0921-4534

Conference paper

Bugoslavsky YV, Zhukov AA, Perkins GK, Caplin AD, Kojima H, Tanaka Iet al., 1997, Vortices in a La1.9Sr0.1CuO4 crystal: influence of the layered structure on magnetisation, International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V, Publisher: ELSEVIER SCIENCE BV, Pages: 1957-1958, ISSN: 0921-4534

Conference paper

Everett J, Johnston MD, Perkins GK, Volkozub AV, Caplin AD, Moore JC, Fox S, Hyland D, Grovenor CRMet al., 1997, Transport and magnetisation measurements of Tl-1223 tapes - The nature of current paths and the role of grain boundaries at high magnetic fields, 1996 Applied Superconductivity Conference, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 1965-1968, ISSN: 1051-8223

Conference paper

Perkins GK, Cohen LF, Zhukov AA, Caplin ADet al., 1997, Effect of deoxygenation on the vortex dynamics in RBa2Cu3O7-delta high-temperature superconductors, PHYSICAL REVIEW B, Vol: 55, Pages: 8110-8113, ISSN: 0163-1829

Journal article

Cohen LF, Totty JT, Perkins GK, Doyle RA, Kadowaki Ket al., 1997, Flux creep associated with bulk pinning and edge barriers in BSCCO-2212 single crystals, SUPERCONDUCTOR SCIENCE & TECHNOLOGY, Vol: 10, Pages: 195-202, ISSN: 0953-2048

Journal article

Bugoslavsky YV, Zhukov AA, Perkins GK, Caplin AD, Minakov AA, Kojima H, Tanaka Iet al., 1997, Reversible and irreversible properties of anisotropic superconductors as studied by vector magnetometry, SUPERLATTICES AND MICROSTRUCTURES, Vol: 21, Pages: 31-35, ISSN: 0749-6036

Journal article

Everett J, Johnston MD, Perkins GK, Volkozub AV, Moore JC, Eastell CJ, Fox S, Hyland D, Grovenor CRM, Caplin ADet al., 1997, Enhanced grain connectivity and transport critical currents in melt-processed (TlBi)-1223 tapes, 3rd European Conference on Applied Superconductivity (EUCAS 1997), Publisher: IOP PUBLISHING LTD, Pages: 905-908, ISSN: 0951-3248

Conference paper

Zhukov AA, Perkins GK, Thomas JV, Caplin AD, Kupfer H, Wolf Tet al., 1996, Direct observation of non-collinear vortex structures induced by twin boundaries in YBa2Cu3Oy single crystals, International Conference on Physics and Chemistry of Molecular and Oxide Superconductors, Publisher: PLENUM PUBL CORP, Pages: 1105-1110, ISSN: 0022-2291

Conference paper

Perkins GK, Caplin AD, 1996, Collective-pinning theory and the observed vortex dynamics in RBa(2)Cu(3)O(7-delta) crystals, PHYSICAL REVIEW B, Vol: 54, Pages: 12551-12556, ISSN: 0163-1829

Journal article

Totty JT, Cohen LF, Perkins GK, Hossain AKMA, Caplin AD, Jensen HJ, Doyle RA, Kadowaki K, Wirth G, Paul DM, Balakrishnan Get al., 1996, Correlated disorder and scaling in single crystals of BSCCO 2212, 21st International Conference on Low Temperature Physics (LT 21), Publisher: CZECHOSLOVAK JNL OF PHYSICS, Pages: 1685-1686, ISSN: 0011-4626

Conference paper

Zhukov AA, Perkins GK, Caplin AD, Kupfer H, Wolf Tet al., 1996, Non-collinear vortex states in twinned YBa2Cu3O7-delta single crystals, 21st International Conference on Low Temperature Physics (LT 21), Publisher: CZECHOSLOVAK JNL OF PHYSICS, Pages: 1773-1774, ISSN: 0011-4626

Conference paper

Totty JT, Cohen LF, Perkins GK, Caplin AD, Jensen HJet al., 1996, Scaling and flux dynamics in YBCO 124, YBCO 123 and BSCCO 2212 single crystals, 21st International Conference on Low Temperature Physics (LT 21), Publisher: CZECHOSLOVAK JNL OF PHYSICS, Pages: 1609-1610, ISSN: 0011-4626

Conference paper

Thomas JV, Perkins GK, Lacey DE, Caplin AD, Voronkova VIet al., 1996, Anisotropy and c-axis current densities in TmBa2Cu3Oy single crystals, 21st International Conference on Low Temperature Physics (LT 21), Publisher: CZECHOSLOVAK JNL OF PHYSICS, Pages: 1775-1776, ISSN: 0011-4626

Conference paper

DHALLE M, CUTHBERT MN, THOMAS J, PERKINS GK, CAPLIN AD, YANG M, GORRINGE Met al., 1995, DISSIPATION IN BSCCO/AG-2212 RIBBONS, 1994 Applied Superconductivity Conference, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 1317-1320, ISSN: 1051-8223

Conference paper

CAPLIN AD, COHEN LF, CUTHBERT MN, DHALLE M, LACEY D, PERKINS GK, THOMAS JVet al., 1995, CRITICAL CURRENTS IN CONDUCTORS - EXPLORING THE LIMITING MECHANISMS, 1994 Applied Superconductivity Conference, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 1864-1869, ISSN: 1051-8223

Conference paper

PERKINS GK, COHEN LF, CAPLIN AD, ZHUKOV AA, KESTLOV SA, VORONKOVA Vet al., 1995, MAGNETIZATION AND FLUX DYNAMICS IN OXYGEN-DEFICIENT TMBA2CU3O7-DELTA, 1994 Applied Superconductivity Conference, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 1367-1370, ISSN: 1051-8223

Conference paper

CAPLIN AD, PERKINS GK, COHEN LF, 1995, UNIVERSAL CREEP RATES IN SUPERCONDUCTORS, SUPERCONDUCTOR SCIENCE & TECHNOLOGY, Vol: 8, Pages: 366-367, ISSN: 0953-2048

Journal article

PERKINS GK, COHEN LF, ZHUKOV AA, CAPLIN ADet al., 1995, IMPLICATIONS OF MAGNETIC-HYSTERESIS-LOOP SCALING IN HIGH-TEMPERATURE SUPERCONDUCTORS, PHYSICAL REVIEW B, Vol: 51, Pages: 8513-8520, ISSN: 2469-9950

Journal article

DHALLE M, CUTHBERT MN, COHEN LF, PERKINS GK, CAPLIN AD, YANG M, GROVENOR CRM, DOU SX, LIU HK, HU QY, WOLF EL, LU F, CHANG Aet al., 1995, FIELD, TEMPERATURE, AND ANGLE DEPENDENCE OF THE CRITICAL-CURRENT DENSITY IN BI2SR2CACU2O10/AG RIBBONS, JOURNAL OF SUPERCONDUCTIVITY, Vol: 8, Pages: 37-42, ISSN: 0896-1107

Journal article

Perkins GK, Cohen LF, Caplin AD, Zhukov AA, Kestlov SA, Voronkova Vet al., 1995, Magnetisation and flux dynamics in oxygen deficient TmBa2Cu3O7-delta, IEEE Transactions on Applied Superconductivity, Vol: 5, Pages: 1367-1370, ISSN: 1051-8223

Journal article

Perkins GK, Cohen LF, Caplin AD, Zhukov AA, Kestlov SA, Voronkova Vet al., 1995, Magnetisation and flux dynamics in oxygen deficient TmBa2Cu3O7-delta, IEEE Transactions on Applied Superconductivity, Vol: 5, Pages: 1367-1370, ISSN: 1051-8223

Journal article

Caplin AD, Cohen LF, Cuthbert MN, Dhalle M, Lacey D, Perkins GK, Thomas JVet al., 1995, Critical currents in conductors - Exploring the limiting mechanisms, IEEE Transactions on Applied Superconductivity, Vol: 5, Pages: 1864-1869, ISSN: 1051-8223

Journal article

Cuthbert MN, Dhalle M, Perkins GK, Cohen LF, Guo YC, Liu HK, Dou SX, Grasso G, Fluekiger R, Penn S, Beales T, Caplin ADet al., 1994, Magnetic and Transport Studies of Bi2223/Ag tapes, PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Vol: 235-40, Pages: 3027-3028, ISSN: 0921-4534

Journal article

LACEY D, COHEN LF, PERKINS GK, ABELL JS, CAPLIN ADet al., 1994, Vector magnetisation studies of interlayer coupling and intrinsic pinning in YBa2Cu3O similar to 6.9, International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors IV (M2S-HTSC IV), Pages: 2595-2596

Previous attempts to study magnetically the critical current that can flow in the c-direction, i.e. from layer to layer, in YBa2Cu3O7 have been hampered by the severe anisotropy of the material. We report and discuss the results of measurements in which the experimental problems have been overcome.

Conference paper

LACEY D, COHEN LF, PERKINS GK, ABELL JS, CAPLIN ADet al., 1994, VECTOR MAGNETIZATION STUDIES OF INTERLAYER COUPLING AND INTRINSIC PINNING IN YBA2CU3O-SIMILAR-TO-6.9, International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors IV (M2S-HTSC IV), Publisher: ELSEVIER SCIENCE BV, Pages: 2595-2596, ISSN: 0921-4534

Conference paper

Caplin AD, Cohen LF, Perkins GK, Zhukov AAet al., 1994, Vortex Motion and the <i>E</i>-<i>J</i>-<i>B</i> Surface in YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub>, PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Vol: 235-40, Pages: 2887-2888, ISSN: 0921-4534

Journal article

CAPLIN AD, COHEN LF, PERKINS GK, ZHUKOV AAet al., 1994, THE ELECTRIC-FIELD WITHIN HIGH-TEMPERATURE SUPERCONDUCTORS - MAPPING THE E-J-B SURFACE, SUPERCONDUCTOR SCIENCE & TECHNOLOGY, Vol: 7, Pages: 412-422, ISSN: 0953-2048

Journal article

Caplin AD, Cassidy SM, Cohen LF, Cuthbert MN, Laverty JR, Perkins GK, Dou SX, Guo YC, Liu HKet al., 1994, ARE THE GRAIN-BOUNDARIES THE LIMITING FACTOR IN HIGH-CURRENT CONDUCTORS, Warrendale, symposium on processing of long lengths of superconductors, held during materials week 93 OCT 17-21, 1993 PITTSBURGH, PA, Publisher: Minerals, Metals & Materials Soc, Pages: 279-288

Conference paper

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