Transition to an insulating phase induced by attractive interactions in the disordered three-dimensional Hubbard model

Article

关键词: MAGNETIC-FIELD;    ELECTRON;    SUPERCONDUCTORS;    LOCALIZATION;    FILMS;   

DOI  :  10.1103/PhysRevB.66.172506

来源: SCIE

【 摘 要 】

We study numerically the interplay of disorder and attractive interactions for spin-1/2 fermions in the three-dimensional Hubbard model. The results obtained by projector quantum Monte Carlo simulations show that at moderate disorder, increasing the attractive interaction leads to a transition from delocalized superconducting states to the insulating phase of localized pairs. This transition takes place well within the metallic phase of the single-particle Anderson model.

【 授权许可】

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