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.
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页码：57 / 61
页数：5
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