期刊
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
卷 481, 期 -, 页码 178-188出版社
ELSEVIER
DOI: 10.1016/j.physc.2012.04.013
关键词
Cuprate superconductors; Stripe order; Quantum criticality
资金
- DFG [FOR 960, GRK 1621]
This article is devoted to a discussion of stripe and electron-nematic order and their connection to electronic properties in the pseudogap regime of copper-oxide superconductors. We review basic properties of these symmetry-breaking ordering phenomena as well as proposals which connect them to quantum-oscillation measurements. Experimental data indicate that these orders are unlikely to be the cause of the pseudogap phenomenon, implying that they occur on top of the pseudogap state which itself is of different origin. Specifically, we discuss the idea that the non-superconducting pseudogap ground state hosts electron-like quasiparticles which coexist with a spin liquid, realizing a variant of a fractionalized Fermi liquid. We speculate on how stripe order in such a pseudogap state might offer a consistent description of ARPES, NMR, quantum-oscillation, and transport data. (C) 2012 Elsevier B. V. All rights reserved.
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