Imperial College London
Portrait Picture

Professor Lesley F Cohen

Faculty of Natural Sciences, Department of Physics

Associate Provost (Equality, Diversity and Inclusion)
 
 
 
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Contact

 

+44 (0)20 7594 7598l.cohen Website CV

 
 
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Assistant

 

Mrs Carolyn Dale +44 (0)20 7594 7579

 
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Location

 

1111Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zverev:2021:10.1016/j.jmmm.2020.167560,
author = {Zverev, VI and Gimaev, RR and Miyanaga, T and Vaulin, AA and Gubkin, AF and Kovalev, BB and dos, Santos AM and Lovell, E and Cohen, LF and Zarkevich, NA},
doi = {10.1016/j.jmmm.2020.167560},
journal = {Journal of Magnetism and Magnetic Materials},
pages = {1--10},
title = {Peculiarities of the phase transformation dynamics in bulk FeRh based alloys from magnetic and structural measurements},
url = {http://dx.doi.org/10.1016/j.jmmm.2020.167560},
volume = {522},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We analyze coexistence of antiferromagnetic and ferromagnetic phases in bulk iron-rhodium and its alloys with palladium, Fe50,4Rh49,6, Fe49,7Rh47,4Pd2,9 and Fe48,3Rh46,8Pd4,9, using neutron diffraction, magnetization and scanning Hall probe imaging. Temperature dependencies of the lattice parameters, AFM and FM phase weight fractions, and Fe magnetic moment values were obtained on cooling and heating across the AFM-FM transition. Substantial thermomagnetic hysteresis for the phases’ weight fractions and a relatively narrow one for the unit cell volume has been observed on cooling-heating. A clear dependence of hysteretic behavior on Pd concentration has been traced. Additional direct magnetic measurements of the spatial distribution of the phase transition are acquired using scanning Hall probe microscopy, which reveals the length scale of the phase coexistence and the spatial progression of the transition in the presence of external magnetic field. Also, the magnetic phase diagram has been constructed for a series of Pd-doped FeRh alloys.
AU  - Zverev,VI
AU  - Gimaev,RR
AU  - Miyanaga,T
AU  - Vaulin,AA
AU  - Gubkin,AF
AU  - Kovalev,BB
AU  - dos,Santos AM
AU  - Lovell,E
AU  - Cohen,LF
AU  - Zarkevich,NA
DO  - 10.1016/j.jmmm.2020.167560
EP  - 10
PY  - 2021///
SN  - 0304-8853
SP  - 1
TI  - Peculiarities of the phase transformation dynamics in bulk FeRh based alloys from magnetic and structural measurements
T2  - Journal of Magnetism and Magnetic Materials
UR  - http://dx.doi.org/10.1016/j.jmmm.2020.167560
UR  - https://www.sciencedirect.com/science/article/pii/S0304885320325270?via%3Dihub
UR  - http://hdl.handle.net/10044/1/84508
VL  - 522
ER  -
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