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Magnetocaloric Effect in La0.7Cd0.3MnO3, La0.7Ba0.3MnO3, and Nd0.7Sr0.3MnO3

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Abstract

We have based on isothermal magnetization curves to study the magnetocaloric effect (MCE) in fine-grained perovskite manganites of La0.7Cd0.3MnO3 (LCMO), La0.7Ba0.3MnO3 (LBMO), and Nd0.7Sr0.3MnO3 (NSMO) prepared by conventional solid-state reaction. Magnetic measurements were performed on a vibrating sample magnetometer, with a temperature increment of 1.0 K, and the applied field in the range of 0–1.8 T. Under an applied field of 1.8 T, the maximum magnetic-entropy change obtained for LCMO, LBMO, and NSMO taking place at their Curie temperature are about 2.3, 2.1, and 5.1 J/(kg⋅K), respectively. The large entropy change in NSMO makes it suitable for magnetic-cooling applications.

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Authors and Affiliations

  1. BK21 Physics Program and Department of Physics, Chungbuk National University, Cheongju, 361-763, South Korea

    P. Zhang, T. L. Phan & S. C. Yu

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  1. P. Zhang
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  2. T. L. Phan
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  3. S. C. Yu
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Correspondence to S. C. Yu.

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Zhang, P., Phan, T.L. & Yu, S.C. Magnetocaloric Effect in La0.7Cd0.3MnO3, La0.7Ba0.3MnO3, and Nd0.7Sr0.3MnO3 . J Supercond Nov Magn 25, 2727–2730 (2012). https://doi.org/10.1007/s10948-011-1252-z

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  • DOI: https://doi.org/10.1007/s10948-011-1252-z

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