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首页> 外文期刊>Journal of Applied Physics >Nonlinear transport properties of La_(2/3)Ca_(1/3)MnO_(3) and Fe_(3)O_(4) films in the extreme Joule heating regime
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Nonlinear transport properties of La_(2/3)Ca_(1/3)MnO_(3) and Fe_(3)O_(4) films in the extreme Joule heating regime

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摘要

The influence of the base temperature, magnetic field, current, and current sweep rate on thenonlinear transport properties of La_(2/3)Ca_(1/3)MnO_(3) and Fe_(3)O_(4) films were studied in the regime of strong Joule heating. In resistance-current curves of the La_(2/3)Ca_(1/3)MnO_(3) film an abrupt hysteretic transition was observed that was induced by global and reversible heating of the film, as could be shown by a direct measurement of the film temperature. In contrast to this behavior, in the case of the Fe_(3)O_(4) film, only a gradual change of the voltage-current curves was detected, although also in this case Joule heating is present. Simulations of the resistance-current and temperature-current curves were carried out for the La_(2/3)Ca_(1/3)MnO_(3) film based on a model of global Joule heating. The simulation results were in good agreement with the experimental data.

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  • 来源
    《Journal of Applied Physics》 |2007年第10期|103902-1-103902-7-0|共7页
  • 作者

    Y. F. Chen; M. Ziese;

  • 作者单位

    Division of Superconductivity and Magnetism, University of Leipzig, 04103 Leipzig, Germany;

    Centre de Biochimie Structurale, INSERM U414, UMR C9955 du CNRS, Universite de Montpellier l, Faculte de Pharmacie, 15 avenue Ch. Flahault, 34060 Montpellier cedex 2, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 应用物理学;计量学;
  • 关键词

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