OPTICAL TESTS FOR BROKEN TIME-REVERSAL SYMMETRY IN HIGH-TEMPERATURE SUPERCONDUCTORS

被引:0
作者
KAPITULNIK, A
机构
[1] Department of Applied Physics, Stanford University, Stanford, CA
来源
PHYSICA SCRIPTA | 1992年 / T42卷
关键词
D O I
10.1088/0031-8949/1992/T42/011
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The existence of the spontanous polar Kerr effect and the Faraday effect in High-T(c) films and crystals was tested using a Sagnac interferometer. Observation of these effects would be strong evidence that the superconductivity in the cuprates is described by a theory that predicts broken time-reversal symmetry. No evidence of either polar Kerr rotation or Faraday effects was found when the data was analyzed for both a spatially fluctuating component (anticipating domains) and an absolute offset. The measurements were done with averaged sensitivity of less than 3 murad.
引用
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页码:57 / 61
页数:5
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