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arXiv · 1403.0453

Magnetic entropy change and critical exponents in double perovskite Y2NiMnO6

G. Sharma·T. S. Tripathi·J. Saha·S Patnaik
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Abstract

We report on the magnetic entropy change and the critical exponents in the double perovskite manganite Y2NiMnO6 with a ferromagnetic to paramagnetic transition TC=85K. For a magnetic field change of 80kOe, a maximum magnetic entropy change -6.57 J /kg K is recorded around TC. The corresponding relative cooling power (134 J / kg) is appreciable towards potential application as a magnetic refrigerant. The critical exponents, beta and gamma satisfy well to values derived for a 3D Heisenberg ferromagnet.

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G. Sharma, T. S. Tripathi, J. Saha, S Patnaik. 2014-03-03. Magnetic entropy change and critical exponents in double perovskite Y2NiMnO6. https://doi.org/10.1016/j.jmmm.2014.05.035

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