Luttinger-volume violating Fermi liquid in the pseudogap phase of the cuprate superconductors

Jia-Wei Mei, Shinji Kawasaki, Guo-Qing Zheng, Zheng-Yu Weng, and Xiao-Gang Wen
Phys. Rev. B 85, 134519 – Published 18 April 2012

Abstract

Based on the NMR measurements on Bi2Sr2xLaxCuO6+δ (La-Bi2201) in strong magnetic fields, we identify the nonsuperconducting pseudogap phase in the cuprates as a Luttinger-volume violating Fermi liquid (LvvFL). This state is a zero-temperature quantum liquid that does not break translational symmetry, and yet, the Fermi surface encloses a volume smaller than the large one given by the Luttinger theorem. The particle number enclosed by the small Fermi surface in the LvvFL equals the doping level p, not the total electron number ne=1p. Both the phase string theory and the dopon theory are introduced to describe the LvvFL. For the dopon theory, we can obtain a semiquantitative agreement with the NMR experiments.

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  • Received 6 September 2011

DOI:https://doi.org/10.1103/PhysRevB.85.134519

©2012 American Physical Society

Authors & Affiliations

Jia-Wei Mei1,2, Shinji Kawasaki3, Guo-Qing Zheng3,4, Zheng-Yu Weng1, and Xiao-Gang Wen1,2

  • 1Institute for Advanced Study, Tsinghua University, Beijing 100084, P. R. China
  • 2Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 3Department of Physics, Okayama University, Okayama 700-8530, Japan
  • 4Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190, China

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Issue

Vol. 85, Iss. 13 — 1 April 2012

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