Coulomb interaction at the superconductor-to-Mott-insulator transition

被引：16

作者：

Ye, JW ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.58.9450

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We reexamine the effects of long-range Coulomb interaction on the onset of superconductivity. We use the model of N complex scalar fields with the Coulomb interaction studied first by Fisher and Grinstein (FG). We find that near d=3 space dimension, the system undergoes second order phase transition if N greater than or equal to 55.39, but undergoes possible fluctuation driven first order transition if N<55.39. We give the detailed derivation of the field theory renormalization group (RG) of this model to one loop. Our RG results disagree with those of FG near d=3. A possible scenario at d=2 is proposed. [S0163-1829(98)00633-X].

引用

页码：9450 / 9459

页数：10

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