The Enigma of the Pseudogap Phase of the Cuprate Superconductors
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CitationChowdhury, Debanjan, and Subir Sachdev. 2014. "The enigma of the pseudogap phase of the cuprate superconductors." In Proceedings of the 50th Karpacz Winter School of Theoretical Physics, Karpacz, Poland, March 2-9, 2014.
AbstractThe last few years have seen significant experimental progress in characterizing the copper-based hole-doped high temperature superconductors in the regime of low hole density, p. Quantum oscillations, NMR, X-ray, and STM experiments have shed much light on the nature of the ordering at low temperatures. We review evidence that the order parameter in the non-Lanthanum-based cuprates is a d-form factor density-wave. This novel order acts as an unexpected window into the electronic structure of the pseudogap phase at higher temperatures in zero field: we argue in favor of a ‘fractionalized Fermi liquid’ (FL*) with 4 pockets of spin S = 1/2, charge +e fermions enclosing an area specified by p.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:30803006
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