VERTEX MODEL IN D-DIMENSIONS - AN EXACT RESULT

被引：14

作者：

BHATTACHARJEE, SM

机构：

[1] Institute of Physics, Bhubaneswar

来源：

EUROPHYSICS LETTERS | 1991年 / 15卷 / 08期

关键词：

CRITICAL POINT PHENOMENA; GENERAL STUDIES OF PHASE TRANSITIONS;

D O I：

10.1209/0295-5075/15/8/002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The specific-heat exponent-alpha for the d-dimensional ferroelectric five-vertex model is shown to be exactly (3 - d)/2 for d less-than-or-equal-to 3 by using a path integral approach developed for flux lattice melting in high-T(c) superconductors. The length scale exponents are nu-parallel-to = 1 in one direction and nu-perpendicular-to = 1/2 in the remaining (d - 1) directions. The upper critical dimension is 3 but quenched randomness lowers it to 1.5.

引用

页码：815 / 820

页数：6

共 22 条

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