...
首页> 外文期刊>Physica, C. Superconductivity and its applications >Origin of superconductivity transition broadening in MgB2
【24h】

Origin of superconductivity transition broadening in MgB2

机译:MgB2中超导转变变宽的起源

获取原文
获取原文并翻译 | 示例
           

摘要

We report resistivity and magnetization of single crystal MgB2, focusing on the broadening of superconducting (SC) transition in magnetic fields. In-plane and out-of-plane resistivity indicate that the broadening of SC transition is independent of Lorentz force and that it is merely dependent on the magnetic field direction. In magnetization, diamagnetic signal begins to appear at almost the same temperature as the onset temperature of resistivity transition. These results suggest that the broadening is attributed not to the surface superconductivity but to the SC fluctuation or the vortex-liquid picture, owing to the short coherence length and the high transition temperature of MgB2. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 33]
机译:我们报告了MgB2单晶的电阻率和磁化强度,重点放在磁场中超导(SC)跃迁的变宽上。面内和面外电阻率表明SC跃迁的展宽与洛伦兹力无关,并且仅取决于磁场方向。在磁化中,抗磁信号开始出现在与电阻率转变的起始温度几乎相同的温度下。这些结果表明,由于MgB2的短相干长度和较高的转变温度,因此加宽不是由于表面超导性,而是由于SC波动或涡流-液象。 (C)2002 Elsevier Science B.V.保留所有权利。 [参考:33]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号