Finite-size, magnetic and chemical-potential effects on first-order phase transitions

被引：14
作者：
Correa, E. B. S. [1 ,3 ]
Linhares, C. A. [2 ]
Malbouisson, A. P. C. [3 ]
机构：
[1] Fed Univ Para, Fac Fis, BR-68505080 Maraba, PA, Brazil
[2] Univ Estado Rio de Janeiro, Inst Fis, BR-20559900 Rio De Janeiro, RJ, Brazil
[3] Ctr Brasileiro Pesquisas Fis CBPF MCTI, BR-22290180 Rio De Janeiro, RJ, Brazil
来源：
PHYSICS LETTERS A | 2013年 / 377卷 / 34-36期
关键词：
Phase transition; Finite-temperature field theory; SPONTANEOUS SYMMETRY-BREAKING; BEHAVIOR; MODEL;
D O I：
10.1016/j.physleta.2013.05.055
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We perform a study about effects of an applied magnetic field and a finite chemical potential on the size-dependent phase structure of a first-order transition. These effects are introduced by using methods of quantum fields defined on toroidal spaces, and we study in particular the case of two compactified dimensions, imaginary time and a spatial one (a heated film). It is found that for any value of the applied field, there is a minimal size of the system, independent of the chemical potential, below which the transition disappears. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：1984 / 1990
页数：7
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