Bosonization of the two-dimensional {ital t}-{ital J} model in the continuum limit
- Department of Physics, City College of the City University of New York, New York, New York 10031 (United States)
- 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, Vol. 54, Issue 6; Other Information: PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
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