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首页> 外文期刊>Physical review >Hysteretic superconducting resistive transition in Ba_(0.07)K_(0.93)Fe_2As_2
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Hysteretic superconducting resistive transition in Ba_(0.07)K_(0.93)Fe_2As_2

机译：Ba_（0.07）K_（0.93）Fe_2As_2中的磁滞超导电阻跃迁

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摘要

We have observed hysteresis in superconducting resistive transition curves of Ba_(0.07)K_(0.93)Fe_2As_2 (T_c.～ 8 K) below about 1 K for in-plane fields.The hysteresis is not observed as the field is tilted away from the ab plane by 20° or more.The temperature and angle dependencies of the upper critical field indicate a strong paramagnetic effect for in-plane fields.We suggest that the hysteresis can be attributed to a first-order superconducting transition due to the paramagnetic effect.Magnetic torque data are also shown.
机译：对于面内磁场，Ba_（0.07）K_（0.93）Fe_2As_2（T_c。〜8 K）的超导电阻跃迁曲线在约1 K以下观察到了磁滞现象。上临界场的温度和角度相关性表明平面内场有很强的顺磁效应，我们建议磁滞可以归因于顺磁效应的一阶超导跃迁。还显示了扭矩数据。

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  • 来源
    《Physical review》 |2013年第18期|184513.1-184513.5|共5页
  • 作者

    Taichi Terashima; Kunihiro Kihou; Megumi Tomita; Satoshi Tsuchiya; Naoki Kikugawa; Shigeyuki Ishida; Chul-Ho Lee; Akira Iyo; Hiroshi Eisaki; Shinya Uji;

  • 作者单位

    National Institute for Materials Science, Tsukuba, Ibaraki 305-0003,Japan,JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan;

    JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan,National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan;

    National Institute for Materials Science, Tsukuba, Ibaraki 305-0003,Japan;

    National Institute for Materials Science, Tsukuba, Ibaraki 305-0003,Japan;

    National Institute for Materials Science, Tsukuba, Ibaraki 305-0003,Japan;

    JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan,National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan;

    JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan,National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan;

    JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan,National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan;

    JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan,National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan;

    National Institute for Materials Science, Tsukuba, Ibaraki 305-0003,Japan,JST, Transformative Research Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan;

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  • 正文语种 eng
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  • 关键词

    superconductivity phase diagrams; mixed states, critical fields, and surface sheaths;

    机译：超导相图;混合状态;临界场和表面鞘;

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