Phys. Rev. Lett. 83, 3538–3541 (1999)Pseudogap Phase and the Quantum-Critical Point in Copper-Oxide MetalsReceived 27 April 1999; published in the issue dated 25 October 1999 A systematic solution of a model for copper oxides reveals a line of transitions T = Tp(x) for x, the doping away from half filling less than a critical value, to a phase with broken time reversal and rotational symmetry. The single-particle spectrum in this phase is calculated to have a gap ∼[cos(kxa/π)-cos(kya/π)]2. The properties in this phase are compared to the properties of the so-called “pseudogap phase” of the copper oxides. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.3538
DOI:
10.1103/PhysRevLett.83.3538
PACS:
74.25.Jb
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