Hidden order in the cuprates
Sudip ChakravartyPhysics Department, University of California–Los Angeles, Los Angeles, California 90095-1547R. B. LaughlinDepartment of Physics, Stanford University, Stanford, California 94305Dirk K. MorrTheoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545Chetan NayakPhysics Department, University of California–Los Angeles, Los Angeles, California 90095-1547
2001en
ABI
Аннотация
We propose that the enigmatic pseudogap phase of cuprate superconductors is characterized by a hidden broken symmetry of ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}$-type. The transition to this state is rounded by disorder, but in the limit that the disorder is made sufficiently small, the pseudogap crossover should reveal itself to be such a transition. The ordered state breaks time-reversal, translational, and rotational symmetries, but it is invariant under the combination of any two. We discuss these ideas in the context of ten specific experimental properties of the cuprates, and make several predictions, including the existence of an as-yet undetected metal-metal transition under the superconducting dome.
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