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Angle Resolved Photemission Experiments to look for Time-reversal Violation in Cuprates

J. C. Campuzano·A. Kaminski·C. M. Varma
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Abstract

The recent experiments reported by Borisenko et al. (cond-mat/0305179 v2), are examined in light of the conditions to be satisfied in the search for time-reversal violation by circularly polarized ARPES. Two principal problems are found: (1) A lack of any evidence for the magnitude of the pseudogap or the temperature of its onset in the samples studied. (2) A difference in the dichroic signal at low and high temperatures. The difference is greater than the stated error bars and is contrary to the conclusions reached in the paper.

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J. C. Campuzano, A. Kaminski, C. M. Varma. 2003-09-19. Angle Resolved Photemission Experiments to look for Time-reversal Violation in Cuprates. https://arxiv.org/abs/cond-mat/0309402

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