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Inhomogeneity and transverse voltage in superconductors

机译:超导体中的不均匀性和横向电压

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摘要

Voltages parallel and transverse to electric current in slightly inhomogeneous superconductors can contain components proportional to the field and temperature derivatives of the longitudinal and Hall resistivities. We show that these anomalous contributions can be the origin of the zero field and even-in-field transverse voltage occasionally observed at the superconductor-to-normal-state transition. The same mechanism can also cause an anomaly in the odd-in-field transverse voltage, interfering with the Hall-effect signal.
机译:稍微不均匀的超导体中与电流平行和横向的电压可能包含与纵向和霍尔电阻率的场和温度导数成比例的分量。我们表明,这些异常的贡献可能是零场和偶极场横向电压的起源,偶尔会在超导体到正常状态的转变处观察到。同样的机制也可能导致场内奇数横向电压出现异常,从而干扰霍尔效应信号。

著录项

  • 来源
    《Physical review》 |2011年第9期|p.094531.1-094531.6|共6页
  • 作者单位

    Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel;

    Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel;

    Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    superconducting films and low-dimensional structures;

    机译:超导膜和低维结构;

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