Photoemission Studies Of The Pseudogap Regime In The High TC Cuprate Phase Diagram

Authors

P. D. Johnson, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
H. B. Yang, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
J. D. Rameau, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
G. D. Gu, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
T. E. Kidd, University of Northern IowaFollow
H. Claus, Argonne National LaboratoryFollow
D. Hinks, Argonne National LaboratoryFollow

Document Type

Conference

Journal/Book/Conference Title

Journal of Physics: Conference Series

Volume

449

Issue

1

Abstract

By examining thermally excited states above the Fermi level in angle resolved photoemission spectroscopy, we show that the disconnected Fermi arcs observed in the pseudogap state of the cuprate phase diagram are actually components of fully enclosed hole pockets. The spectral weight of these pockets is vanishingly small at the Luttinger surface, coincident with the antiferromagnetic zone-boundary formed by the underlying spin lattice, creating the illusion of the Fermi arcs. The area of the pockets as measured in this study is consistent with the doping level, and hence the carrier density, of the samples measured. Furthermore, the shape and area of the pockets is well reproduced by phenomenological models of the pseudogap phase that reflect its proximity to a Mott insulator. © Published under license by IOP Publishing Ltd.

Department

Department of Physics

Original Publication Date

1-1-2013

DOI of published version

10.1088/1742-6596/449/1/012007

Recommended Citation

Johnson, P. D.; Yang, H. B.; Rameau, J. D.; Gu, G. D.; Kidd, T. E.; Claus, H.; and Hinks, D., "Photoemission Studies Of The Pseudogap Regime In The High TC Cuprate Phase Diagram" (2013). Faculty Publications. 1690.
https://scholarworks.uni.edu/facpub/1690