An investigation of magnetocaloric effect and its implementation in critical behavior study of La1-xNdxMn2Si 2 compounds

B. Emre; I. Dincer; Y. Elerman; S. Aksoy

doi:10.1016/j.solidstatesciences.2013.05.002

An investigation of magnetocaloric effect and its implementation in critical behavior study of La_1-xNd_xMn₂Si ₂ compounds

B. Emre^*, I. Dincer, Y. Elerman, S. Aksoy

^*Corresponding author for this work

Department of Physics Engineering

Ankara University

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The magnetic properties of La_1-xNd_xMn ₂Si₂ (x = 0.30-0.45) compounds are studied over the temperature range 5 K ≤ T ≤ 375 K. We report inverse and conventional magnetic entropy change values of La_1-xNd_xMn ₂Si₂ (x = 0.35 and 0.40) compounds over the temperature range 5 ≤ T ≤ 375 K. In addition, we study critical behavior of La _1-xNd_xMn₂Si₂ (x = 0.35 and 0.40) compounds around their Curie temperatures. The field dependence of the magnetic entropy change is brought out and implemented to deduce the critical exponents. The critical behavior study shows that the magnetic interactions for the x = 0.35 sample have the same behavior below and above T_C. However, for the x = 0.40 sample has different behavior below and above T_C. Thus, the x = 0.40 sample behaves as a multiphase compound.

Original language	English
Pages (from-to)	1-7
Number of pages	7
Journal	Solid State Sciences
Volume	22
DOIs	https://doi.org/10.1016/j.solidstatesciences.2013.05.002
Publication status	Published - 2013

Funding

We acknowledge the Duisburg-Essen University the facilities used to make magnetization and we gratefully thank M. Acet for both helpful discussions and experimental support. This work was supported by TUBITAK (Grant number: 109T563 ).

Funders	Funder number
TUBITAK	109T563

Keywords

Critical phenomena
Intermetallics
Magnetic properties
Magnetocaloric effect

Access to Document

10.1016/j.solidstatesciences.2013.05.002

Cite this

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title = "An investigation of magnetocaloric effect and its implementation in critical behavior study of La1-xNdxMn2Si 2 compounds",

abstract = "The magnetic properties of La1-xNdxMn 2Si2 (x = 0.30-0.45) compounds are studied over the temperature range 5 K ≤ T ≤ 375 K. We report inverse and conventional magnetic entropy change values of La1-xNdxMn 2Si2 (x = 0.35 and 0.40) compounds over the temperature range 5 ≤ T ≤ 375 K. In addition, we study critical behavior of La 1-xNdxMn2Si2 (x = 0.35 and 0.40) compounds around their Curie temperatures. The field dependence of the magnetic entropy change is brought out and implemented to deduce the critical exponents. The critical behavior study shows that the magnetic interactions for the x = 0.35 sample have the same behavior below and above TC. However, for the x = 0.40 sample has different behavior below and above TC. Thus, the x = 0.40 sample behaves as a multiphase compound.",

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T1 - An investigation of magnetocaloric effect and its implementation in critical behavior study of La1-xNdxMn2Si 2 compounds

AU - Emre, B.

AU - Dincer, I.

AU - Elerman, Y.

AU - Aksoy, S.

PY - 2013

Y1 - 2013

N2 - The magnetic properties of La1-xNdxMn 2Si2 (x = 0.30-0.45) compounds are studied over the temperature range 5 K ≤ T ≤ 375 K. We report inverse and conventional magnetic entropy change values of La1-xNdxMn 2Si2 (x = 0.35 and 0.40) compounds over the temperature range 5 ≤ T ≤ 375 K. In addition, we study critical behavior of La 1-xNdxMn2Si2 (x = 0.35 and 0.40) compounds around their Curie temperatures. The field dependence of the magnetic entropy change is brought out and implemented to deduce the critical exponents. The critical behavior study shows that the magnetic interactions for the x = 0.35 sample have the same behavior below and above TC. However, for the x = 0.40 sample has different behavior below and above TC. Thus, the x = 0.40 sample behaves as a multiphase compound.

AB - The magnetic properties of La1-xNdxMn 2Si2 (x = 0.30-0.45) compounds are studied over the temperature range 5 K ≤ T ≤ 375 K. We report inverse and conventional magnetic entropy change values of La1-xNdxMn 2Si2 (x = 0.35 and 0.40) compounds over the temperature range 5 ≤ T ≤ 375 K. In addition, we study critical behavior of La 1-xNdxMn2Si2 (x = 0.35 and 0.40) compounds around their Curie temperatures. The field dependence of the magnetic entropy change is brought out and implemented to deduce the critical exponents. The critical behavior study shows that the magnetic interactions for the x = 0.35 sample have the same behavior below and above TC. However, for the x = 0.40 sample has different behavior below and above TC. Thus, the x = 0.40 sample behaves as a multiphase compound.

KW - Critical phenomena

KW - Intermetallics

KW - Magnetic properties

KW - Magnetocaloric effect

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