Bosonization of the two-dimensional {ital t}-{ital J} model in the continuum limit

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.4293· OSTI ID:286699

Schmeltzer, D ^[1]; Bishop, A R ^[2]

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1. Department of Physics, City College of the City University of New York, New York, New York 10031 (United States)
2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

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.}

• OSTI ID: 286699
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 6 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FERMI GAS
FREE ENERGY
GAUGE INVARIANCE
GREEN FUNCTION
HIGH-TC SUPERCONDUCTORS
MATHEMATICAL MODELS
TWO-DIMENSIONAL CALCULATIONS