Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound

Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound

The paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)13. The disordered local moment (DLM) is represented by the first principle calculations. With a reduction of the volume, the DLM amplitude decreases gradually. In the temperature dependence of electrical resistivity ρ under hydrostat...

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Main Author: Asaya Fujita
Format: Article
Language:English
Published: AIP Publishing LLC 2016-06-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4953434
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spelling doaj-5617ca221bec43c1a4b7693b224c8db92020-11-24T23:35:36ZengAIP Publishing LLCAPL Materials2166-532X2016-06-0146064108064108-510.1063/1.4953434008694APMRelation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compoundAsaya Fujita0Chubu Center, National Institute of Advanced Industrial Science and Technology, Nagoya Aichi 463-8560, JapanThe paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)13. The disordered local moment (DLM) is represented by the first principle calculations. With a reduction of the volume, the DLM amplitude decreases gradually. In the temperature dependence of electrical resistivity ρ under hydrostatic pressure, an upturn in the variation of ρ in the paramagnetic state was observed with decreasing temperature, which is originated from the Curie-Weiss-type DLM fluctuations. In the vicinity of the critical pressure for disappearance of the DLM, the variation of ρ as a function of log(T) was observed.http://dx.doi.org/10.1063/1.4953434
collection DOAJ
language English
format Article
sources DOAJ
author Asaya Fujita
spellingShingle Asaya Fujita
Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound
APL Materials
author_facet Asaya Fujita
author_sort Asaya Fujita
title Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound
title_short Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound
title_full Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound
title_fullStr Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound
title_full_unstemmed Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound
title_sort relation between paramagnetic entropy and disordered local moment in la(fe0.88si0.12)13 magnetocaloric compound
publisher AIP Publishing LLC
series APL Materials
issn 2166-532X
publishDate 2016-06-01
description The paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)13. The disordered local moment (DLM) is represented by the first principle calculations. With a reduction of the volume, the DLM amplitude decreases gradually. In the temperature dependence of electrical resistivity ρ under hydrostatic pressure, an upturn in the variation of ρ in the paramagnetic state was observed with decreasing temperature, which is originated from the Curie-Weiss-type DLM fluctuations. In the vicinity of the critical pressure for disappearance of the DLM, the variation of ρ as a function of log(T) was observed.
url http://dx.doi.org/10.1063/1.4953434
work_keys_str_mv AT asayafujita relationbetweenparamagneticentropyanddisorderedlocalmomentinlafe088si01213magnetocaloriccompound
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