Quantum Transition between an Antiferromagnetic Mott Insulator and {ital d}{sub {ital x}{sup 2} {minus}{ital y}{sup 2}} Superconductor in Two Dimensions
Journal Article
·
· Physical Review Letters
- Department of Physics, University of California, Santa Barbara, California 93106-9530 (United States)
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.}
- OSTI ID:
- 399865
- Journal Information:
- Physical Review Letters, Vol. 77, Issue 22; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
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