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Electronic entropy change in Ni-doped FeRh

Pérez, Nicolás ; Chirkova, Alisa ; Skokov, Konstantin P. ; Woodcock, Thomas George ; Gutfleisch, Oliver ; Baranov, Nikolai V. ; Nielsch, Kornelius ; Schierning, Gabi (2021):
Electronic entropy change in Ni-doped FeRh.
In: Materials Today Physics, 9, Elsevier, ISSN 2542-5293,
DOI: 10.26083/tuprints-00013497,

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Item Type: Article
Title: Electronic entropy change in Ni-doped FeRh
Language: English

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 dSel=8.9 J/(kg K) 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.

Journal or Publication Title: Materials Today Physics
Volume of the journal: 9
Place of Publication: Darmstadt
Publisher: Elsevier
Collation: 11 Seiten
Classification DDC: 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Functional Materials
Date Deposited: 02 Aug 2021 06:59
Last Modified: 17 Aug 2022 09:54
DOI: 10.26083/tuprints-00013497
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-134970
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/13497
PPN: 494574038
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