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首页> 外文期刊>Physical chemistry chemical physics: PCCP >The relationship between the asymmetric magnetoresistive effect and the magnetocaloric effect in Ni43Co7Mn39-xCrxSn11 Heusler alloys
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The relationship between the asymmetric magnetoresistive effect and the magnetocaloric effect in Ni43Co7Mn39-xCrxSn11 Heusler alloys

机译：Ni43Co7MN39-XCRXSN11 Heusler合金非对称磁阻效应与磁热效应的关系

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摘要

The correlation between the magnetocaloric effect and magnetotransport property was investigated in Ni43Co7Mn39-xCrxSn11 Heusler alloys. The asymmetric isothermal-magnetoresistance around the phase transformation temperature was observed, from which a parameter , determined as the ratio of the asymmetric magnetoresistance to the temperature coefficient of resistance, is proposed. According to Maxwell's equation, the parameter is analyzed to be equivalent to the transformation temperature change induced by a magnetic field in martensitic transformation. This finding is confirmed by experimental results. In addition, the values can be used to estimate the magnetic entropy change of the martensitic transformation directly without measuring the comprehensive temperature dependence of magnetization curves.
机译：在Ni43CO7MN39-XCRXSN11 Heusler合金中研究了磁热效应与磁性传输性能之间的相关性。 围绕相变温度围绕相变温度的不对称等温磁阻，提出了作为不对称磁阻与温度抗性系数的比率的参数。 根据Maxwell的等式，分析参数相当于马氏体变换中磁场引起的变换温度变化。 该发现通过实验结果确认。 此外，该值可用于直接估计马氏体变换的磁熵变化，而不会测量磁化曲线的综合温度依赖性。

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    Xu Yunli; Yang Dongchao; Ding Linjie; Yi Lizhi; Fan Shuaiwei; Pan Liqing; Li Jia; Hu Fengxia; Yu Guanghua; Xiao John Q.;

  • 作者单位

    China Three Gorges Univ Coll Sci Res Inst Magnetoelect &

    Weak Magnet Field Detec Yichang 443002 Peoples R China;

    China Three Gorges Univ Coll Sci Res Inst Magnetoelect &

    Weak Magnet Field Detec Yichang 443002 Peoples R China;

    China Three Gorges Univ Coll Sci Res Inst Magnetoelect &

    Weak Magnet Field Detec Yichang 443002 Peoples R China;

    China Three Gorges Univ Coll Sci Res Inst Magnetoelect &

    Weak Magnet Field Detec Yichang 443002 Peoples R China;

    China Three Gorges Univ Coll Sci Res Inst Magnetoelect &

    Weak Magnet Field Detec Yichang 443002 Peoples R China;

    China Three Gorges Univ Coll Sci Res Inst Magnetoelect &

    Weak Magnet Field Detec Yichang 443002 Peoples R China;

    Chinese Acad Sci Inst Phys State Key Lab Magnetism Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Phys State Key Lab Magnetism Beijing 100190 Peoples R China;

    Univ Sci &

    Technol Beijing Sch Mat Sci &

    Engn Beijing 100083 Peoples R China;

    Univ Delaware Dept Phys &

    Astron Newark DE 19716 USA;

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  • 正文语种 eng
  • 中图分类 物理学;化学;
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