Critical properties of the topological Ginzburg-Landau model

被引：16

作者：

de Calan, C ^{[1
]}

Malbouisson, APC

Nogueira, FS

Svaiter, NF

机构：

[1] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France

[2] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.59.554

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider a Ginzburg-Landau model for superconductivity with a Chern-Simons term added. The flow diagram contains two charged fixed points corresponding to the tricritical and infrared stable fixed points. The topological coupling controls the fixed-point structure and eventually the region of first-order transitions disappears. We compute the critical exponents as a function of the topological coupling, We obtain that the value of the nu exponent does not vary very much from the XY value, nu(XY)=0.67. This shows that the Chern-Simons term does not affect considerably the XY scaling of superconductors. We discuss briefly the possible phenomenological applications of this model. [S0163-1829(99)06901-5].

引用

页码：554 / 560

页数：7

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