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Relation between paramagnetic entropy and disordered local moment in La(Fe0.88Si0.12)13 magnetocaloric compound (2016)

Asaya Fujita

American Institute of Physics (AIP)

In: APL Materials

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Publication Date: 2016-06-09

Description: The paramagnetic fluctuations are investigated in La(Fe 0.88 Si 0.12 ) 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.

Electronic ISSN: 2166-532X

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Published by American Institute of Physics (AIP)

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