Condensed Matter Physics Seminar

2 p.m., Thursday, September 12, 2002
Room 1201, Physics Building

 Detection and Implications of a Time-reversal-breaking State in the Cuprates

Chandra Varma

(Lucent Technologies)

Abstract:  Near optimal doping, the Cuprates display properties characterestic of fluctuations near a Quantum Critical Point.  A symmetry breaking in the underdoped cuprates is therefore expected. A theory predicts a very elusive time-reversal breaking phase in this region.  I will describe the symmetry considerations using which such a phase appears to have been detected recently by circularly polarized photoemission experiments. The implications of this experiment, if correct, are that the essentials of a microscopic theory of the Cuprates may have been found.
Host:  Das Sarma
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