Electronic entropy change in Ni-doped FeRh

Perez N, Chirkova A, Skokov KP, Woodcock TG, Gutfleisch O, Baranov NV, Nielsch K, Schierning G (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Materials Today Physics Elsevier

Book Volume: 9

Article Number: 100129

DOI: 10.1016/j.mtphys.2019.100129

Abstract

The net entropy change corresponding to the free charge carriers in a Ni-doped FeRh bulk polycrystal was experimentally evaluated in a single sample using low-temperature heat capacity experiments with applied magnetic field and using Seebeck effect and Hall coefficient measurements at high temperatures across the first-order phase transition. From the heat capacity data, a value for the electronic entropy change ΔSel≈8.9 J kg⁻¹K⁻¹ was extracted. The analysis of the Seebeck coefficient allows tracing the change of the electronic entropy jump with applied magnetic field directly across the transition. The difference in electronic entropy contribution obtained is as high as 10% from 0.1 to 6 T.

Involved external institutions

Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden

Germany (DE) Technische Universität Darmstadt

Germany (DE) Ural Federal University B.N. Yeltsin

Russian Federation (RU)

How to cite

APA:

Perez, N., Chirkova, A., Skokov, K.P., Woodcock, T.G., Gutfleisch, O., Baranov, N.V.,... Schierning, G. (2019). Electronic entropy change in Ni-doped FeRh. Materials Today Physics, 9. https://doi.org/10.1016/j.mtphys.2019.100129

MLA:

Perez, N., et al. "Electronic entropy change in Ni-doped FeRh." Materials Today Physics 9 (2019).

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