Magnetization of planar four-fermion systems

被引：39

作者：

Caldas, Heron ^{[1
]}

Ramos, Rudnei O. ^{[2
]}

机构：

[1] Univ Fed Sao Joao del Rei, Dept Ciencias Nat, BR-36301160 Sao Joao Del Rei, MG, Brazil

[2] Univ Estado Rio de Janeiro, Dept Fis Teor, BR-20550013 Rio De Janeiro, Brazil

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 11期

关键词：

SYMMETRY-BREAKING; FIELD; SUSCEPTIBILITY; SOLITONS;

D O I：

10.1103/PhysRevB.80.115428

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider a planar system of fermions, at finite temperature and density under a static magnetic field parallel to the two-dimensional plane. This magnetic field generates a Zeeman effect and then a spin polarization of the system. The critical properties are studied from the Landau's free energy. The possible observable consequences of the magnetization of planar systems such as polymer films and graphene are discussed.

引用

页数：9

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