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arXiv · 1405.0752

Kerr effect as evidence of gyrotropic order in the cuprates - revisited

Pavan Hosur·A. Kapitulnik·S. A. Kivelson·J. Orenstein·S. Raghu·W. Cho·A. Fried
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Abstract

Recent analysis has confirmed earlier general arguments that the Kerr response vanishes in any time-reversal invariant system which satisfies the Onsager relations. Thus, the widely cited relation between natural optical activity (gyrotropy) and the Kerr response, employed in Hosur \textit{et al}, Phys. Rev. B \textbf{87}, 115116 (2013), is incorrect. However, there is increasingly clear experimental evidence that, as argued in our paper, the onset of an observable Kerr-signal in the cuprates reflects point-group symmetry rather than time-reversal symmetry breaking.

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Pavan Hosur, A. Kapitulnik, S. A. Kivelson, J. Orenstein, S. Raghu, W. Cho, A. Fried. 2014-05-05. Kerr effect as evidence of gyrotropic order in the cuprates - revisited. https://doi.org/10.1103/physrevb.91.039908

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