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Numerical simulations - Some results for the 2- and 3-D Hubbard models and a 2-D electron phonon modelNumerical simulations on the half-filled three-dimensional Hubbard model clearly show the onset of Neel order. Simulations of the two-dimensional electron-phonon Holstein model show the competition between the formation of a Peierls-CDW state and a superconducting state. However, the behavior of the partly filled two-dimensional Hubbard model is more difficult to determine. At half-filling, the antiferromagnetic correlations grow as T is reduced. Doping away from half-filling suppresses these correlations, and it is found that there is a weak attractive pairing interaction in the d-wave channel. However, the strength of the pair field susceptibility is weak at the temperatures and lattice sizes that have been simulated, and the nature of the low-temperature state of the nearly half-filled Hubbard model remains open.
Document ID
19890056146
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Scalapino, D. J.
(California Univ. Santa Barbara, CA, United States)
Sugar, R. L.
(California Univ. Santa Barbara, CA, United States)
White, S. R.
(California Univ. Santa Barbara, CA, United States)
Bickers, N. E.
(California, University Santa Barbara, United States)
Scalettar, R. T.
(Illinois, University Urbana, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Physica Scripta
Volume: T27
ISSN: 0281-1847
Subject Category
Solid-State Physics
Accession Number
89A43517
Funding Number(s)
CONTRACT_GRANT: NSF PHY-82-17853
CONTRACT_GRANT: NSF DMR-86-15454
CONTRACT_GRANT: DE-FG03-88ER-45197
CONTRACT_GRANT: NSF DMR-86-12860
Distribution Limits
Public
Copyright
Other

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