期刊
PHYSICAL REVIEW B
卷 66, 期 18, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.66.184508
关键词
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Superconductivity in the Hubbard model is studied on a series of lattices in which dimers are coupled in various types of arrays. Using fluctuation exchange method and solving the linearized Eliashberg equation, the transition temperature T-c of these systems is estimated to be much higher than that of the Hubbard model on a simple square lattice, which is a model for the high-T-c cuprates. We conclude that these 'dimer array' systems can generally exhibit superconductivity with very high T-c. Not only d-electron systems, but also p-electron systems may provide various stages for realizing the present mechanism.
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