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Author Assaad, F. ♦ Imada, M. ♦ Scalapino, D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ SUPERCONDUCTIVITY ♦ HUBBARD MODEL ♦ ANTIFERROMAGNETISM ♦ MONTE CARLO METHOD ♦ ELECTRONIC STRUCTURE ♦ FERMIONS ♦ SIMULATION ♦ D WAVES ♦ METAL-INSULATOR TRANSFORMATIONS
Abstract We consider a Hubbard model on a square lattice with an additional interaction, {ital W}, which depends upon the square of the near-neighbor hopping. At half filling and a constant value of the Hubbard repulsion, increasing the strength of the interaction {ital W} drives the system from an antiferromagnetic Mott insulator to a {ital d}{sub {ital x}{sup 2}{minus}{ital y}{sup 2}} superconductor. This conclusion is reached on the basis of zero temperature quantum Monte Carlo simulations on lattice sizes up to 16{times}16. {copyright} {ital 1996 The American Physical Society.}
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-11-01
Publisher Place United States
Journal Physical Review Letters
Volume Number 77
Issue Number 22


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