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Author Schmeltzer, D. ♦ Bishop, A. R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ HIGH-TC SUPERCONDUCTORS ♦ MATHEMATICAL MODELS ♦ TWO-DIMENSIONAL CALCULATIONS ♦ FERMI GAS ♦ FREE ENERGY ♦ GREEN FUNCTION ♦ GAUGE INVARIANCE
Abstract The {ital t}-{ital J} model in two dimensions is bosonized using a set of {ital N}, coupled two-dimensional Fermi-surface patches. Ignoring tunneling between the patches, the coherent tunneling of holes and the superfluid phase are suppressed. Within this scheme the system remains in the normal phase when temperature {ital T}{r_arrow}0. The main feature of this construction is the absence of screening of the dissipative transversal gauge field generated by the spinons. This dissipative gauge field is responsible for the non-Fermi-liquid behavior, which is manifested in the free energy and single-particle Green function. The deviation from Fermi-liquid behavior is due to the {ital U}(1) gauge field, and at long distances a new exponent due to the holes is identified. Experimental consequences are discussed. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-08-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 6


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