Critical behavior and magnetocaloric effect in La0.7Ba0.25Nd0.05Mn1-xCuxO3

T. V. Manh; K. P. Shinde; D. Nanto; H. Lin; Y. Pham; D. S. Razaq; D. R. Munazat; Budhy Kurniwan; S. C. Yu; K. C. Chung; D. H. Kim

doi:10.1063/1.5079842

AIP Advances (Mar 2019)

Critical behavior and magnetocaloric effect in La0.7Ba0.25Nd0.05Mn1-xCuxO3

T. V. Manh,
K. P. Shinde,
D. Nanto,
H. Lin,
Y. Pham,
D. S. Razaq,
D. R. Munazat,
Budhy Kurniwan,
S. C. Yu,
K. C. Chung,
D. H. Kim

Affiliations

T. V. Manh: Department of Physics, Chungbuk National University, Cheongju 28644, South Korea
K. P. Shinde: Department of Physics, Chungbuk National University, Cheongju 28644, South Korea
D. Nanto: Department of Physics Education, Syarif Hidayatullah State Islamic University, Jakarta 15412, Indonesia
H. Lin: Department of Physics, Chungbuk National University, Cheongju 28644, South Korea
Y. Pham: Department of Physics, Chungbuk National University, Cheongju 28644, South Korea
D. S. Razaq: Department of Physics, Universitas Indonesia, Depok 16424, Indonesia
D. R. Munazat: Department of Physics, Universitas Indonesia, Depok 16424, Indonesia
Budhy Kurniwan: Department of Physics, Universitas Indonesia, Depok 16424, Indonesia
S. C. Yu: Department of Physics, Chungbuk National University, Cheongju 28644, South Korea
K. C. Chung: Functional Materials Department, Korea Institute of Materials Science, Changwon 51508, South Korea
D. H. Kim: Department of Physics, Chungbuk National University, Cheongju 28644, South Korea

DOI: https://doi.org/10.1063/1.5079842
Journal volume & issue: Vol. 9, no. 3
pp. 035345 – 035345-5

Abstract

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In this work, the magnetic and magnetocaloric properties of La0.7Ba0.25Nd0.05Mn1-xCuxO3 samples (x = 0 - 0.07) synthesized by the sol-gel method are presented. The compounds exhibited a second-order phase transition (SOPT) of ferromagnetic-paramagnetic (FM-PM) phase transition following Banerjee’s criterion. Curie temperature TC decreased with increasing doping concentration. The critical behavior analysis using modified Arrott plots (MAP) showed a short-range FM ordering. Significant entropy change of samples was observed near the TC, which decreased with Cu content. The SOPT nature of compounds was confirmed by both the universal curves and scaling hypothesis.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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