Faculty Publications

Document Type

Article

Journal/Book/Conference Title Title

Physical Revew Letters

Volume

107

Issue

4

First Page

047003-1

Last Page

047003-4

Abstract

The Fermi surface topologies of underdoped samples of the high-Tc superconductor Bi2Sr2CaCu2O8+δ have been measured with angle resolved photoemission. By examining thermally excited states above the Fermi level, we show that the observed Fermi surfaces in the pseudogap phase are actually components of fully enclosed hole pockets. The spectral weight of these pockets is vanishingly small at the magnetic zone boundary, creating the illusion of Fermi ‘‘arcs.’’ The area of the pockets as measured in this study is consistent with the doping level, and hence carrier density, of the samples measured. Furthermore, the shape and area of the pockets is well reproduced by phenomenological models of the pseudogap phase as a spin liquid.

Department

Department of Physics

Comments

First published in Physical Review Letters, v. 107, no. 4, published by the American Physical Society. DOI: 10.1103/PhysRevLett.107.047003

Original Publication Date

7-2011

DOI of published version

10.1103/PhysRevLett.107.047003

Repository

UNI ScholarWorks, University of Northern Iowa, Rod Library

Date Digital

2011

Copyright

©2011 H.-B. Yang, J.D. Rameau, Z.-H. Pan, G.D. Gu, P.D. Johnson, H. Claus, D.G. Hinks, and T.E. Kidd. The copyright holder has granted permission for posting.

Language

EN

File Format

application/pdf

Included in

Physics Commons

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