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The temperature dependence of FeRh’s transport properties
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Mankovsky, S., Polesya, S., Chadova, K., Staunton, Julie B., Gruenbaum, T., Schoen , M. A. W., Back, C. H., Chen, X. Z. and Song, C. K. (2017) The temperature dependence of FeRh’s transport properties. Physical Review B (Condensed Matter and Materials Physics) . ISSN 1098-0121.
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Official URL: https://journals.aps.org/prb/issues
Abstract
The finite-temperature transport properties of FeRh compounds are investigated by first-principles
Density Functional Theory-based calculations. The focus is on the behavior of the longitudinal resistivity
with rising temperature, which exhibits an abrupt decrease at the metamagnetic transition
point, T = Tm between ferro- and antiferromagnetic phases. A detailed electronic structure investigation
for T ≥ 0 K explains this feature and demonstrates the important role of (i) the difference
of the electronic structure at the Fermi level between the two magnetically ordered states and (ii)
the different degree of thermally induced magnetic disorder in the vicinity of Tm, giving different
contributions to the resistivity. To support these conclusions, we also describe the temperature
dependence of the spin-orbit induced anomalous Hall resistivity and Gilbert damping parameter.
For the various response quantities considered the impact of thermal lattice vibrations and spin fluctuations
on their temperature dependence is investigated in detail. Comparison with corresponding
experimental data finds in general a very good agreement.
Item Type: | Journal Article | ||||
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Alternative Title: | |||||
Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Metals -- Effect of high temperatures on, Alloys -- Thermal properties, Transition metals | ||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1098-0121 | ||||
Official Date: | 5 April 2017 | ||||
Dates: |
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Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 6 April 2017 | ||||
Date of first compliant Open Access: | 11 April 2017 | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | EP/J006750/1 |
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