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Magnetocaloric effect in ordered double-perovskite Ba\(_\mathsf{2}\)FeMoO\(_\mathsf{6}\) synthesized using wet chemistry

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Abstract.

Double perovskite Ba2FeMoO6 has been prepared by a wet chemistry method and its magnetocaloric effect has been studied. The Ba2FeMoO6 sample, consisting of crystallites with diameter of 130 nm and average aspect ratio of 15, exhibits a sharp magnetic transition. The maximum of the magnetic entropy change peaks at its Curie temperature (340 K), and a large magnetic entropy change (\(\sim\)1.54 J/kg K, or \(\sim\)0.081 J/mol (atoms) K) is obtained upon 10 kOe applied magnetic field change. For comparison, the magnetic properties of Ba2FeMoO6 prepared by a conventional solid-state reaction was also investigated.

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Authors and Affiliations

  1. National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for Nano Technology, Nanjing University, 210093, Nanjing, P.R. China

    W. Zhong, X. L. Wu, N. J. Tang, W. Liu & Y. W. Du

  2. Department of Physics, Heibei Normal University, 050091, Shijiazhuang, P.R. China

    W. Chen

  3. Chemistry Department and Center for Surface Analysis and Research, Hong Kong Baptist University, Kowloon Tong, Hong Kong

    C. T. Au

Authors
  1. W. Zhong
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  2. X. L. Wu
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  3. N. J. Tang
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  4. W. Liu
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  5. W. Chen
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  6. C. T. Au
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  7. Y. W. Du
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Correspondence to W. Zhong.

Additional information

Received: 3 June 2004, Published online: 12 October 2004

PACS:

75.30.Sg Magnetocaloric effect, magnetic cooling - 82.80.-d Chemical analysis and related physical methods of analysis - 81.05.Mh Cermets, ceramic and refractory composites

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Zhong, W., Wu, X.L., Tang, N.J. et al. Magnetocaloric effect in ordered double-perovskite Ba\(_\mathsf{2}\)FeMoO\(_\mathsf{6}\) synthesized using wet chemistry. Eur. Phys. J. B 41, 213–217 (2004). https://doi.org/10.1140/epjb/e2004-00312-9

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  • DOI: https://doi.org/10.1140/epjb/e2004-00312-9

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