• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica, C. Superconductivity and its applications >SPLITTING OF THE BULK RESISTIVE TRANSITION IN HIGH-T-C SUPERCONDUCTORS - EVIDENCE FOR UNCONVENTIONAL PAIRING
【24h】

SPLITTING OF THE BULK RESISTIVE TRANSITION IN HIGH-T-C SUPERCONDUCTORS - EVIDENCE FOR UNCONVENTIONAL PAIRING

机译：高T-C超导体中本体电阻跃迁的分裂-对非常规对的证据

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report on measurements of the resistive transition in several samples of polycrystalline YBa2Cu3O7-y and Bi2Sr2Ca2Cu3O10+x, an single crystal Bi2Sr2CaCu2O8+x. The results are analyzed in terms of the temperature derivative of the resistivity, d rho/dT. In the ceramic samples, we systematically find that the transition proceeds as a two-stage process. Initially, superconductivity establishes in some disconnected regions of the homogeneous phase. Long range ordering is obtained at lower temperatures as a consequence of a paracoherent-coherent transition involving the granular array. A new, reproducible and general feature is also revealed in our results. The principal maximum of d rho/dT, which denotes the intragranular transition, shows a two-peak splitting. This characteristic, which is observed in all investigated samples strongly suggests the occurrence of a double bulk superconducting transition, which is in itself a signature of unconventional order parameter symmetry. [References: 28]
机译：我们报告了多晶YBa2Cu3O7-y和Bi2Sr2Ca2Cu3O10 + x（单晶Bi2Sr2CaCu2O8 + x）的几个样品中电阻跃迁的测量结果。根据电阻率的温度导数d rho / dT分析结果。在陶瓷样品中，我们系统地发现过渡过程分为两个阶段。最初，超导电性在均质相的一些非连接区域中建立。由于涉及颗粒阵列的超相干-相干转变，因此在较低温度下可获得长距离有序。我们的结果还揭示了一个新的，可重复的和通用的功能。代表晶内转变的d rho / dT的主要最大值显示了两个峰的分裂。在所有研究样品中均观察到的这一特征强烈暗示了双体超导转变的出现，这本身就是非常规有序参数对称性的标志。 [参考：28]

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