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

共 32 条

[21] Two-dimensional gas of massless Dirac fermions in graphene [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Katsnelson, MI ;

Grigorieva, IV ;

Dubonos, SV ;

Firsov, AA .

NATURE, 2005, 438 (7065) :197-200

[22] Weak anisotropy and disorder dependence of the in-plane magnetoresistance in high-mobility (100) Si-inversion layers [J].

Pudalov, VM ;

Brunthaler, G ;

Prinz, A ;

Bauer, G .

PHYSICAL REVIEW LETTERS, 2002, 88 (07) :764011-764014

[23] DYNAMIC SYMMETRY-BREAKING IN 4-FERMION INTERACTION MODELS [J].

ROSENSTEIN, B ;

WARR, BJ ;

PARK, SH .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1991, 205 (02) :59-108

[24] THERMODYNAMICS OF (2+1)-DIMENSIONAL 4-FERMION MODELS [J].

ROSENSTEIN, B ;

WARR, BJ ;

PARK, SH .

PHYSICAL REVIEW D, 1989, 39 (10) :3088-3092

[25] 4-FERMION THEORY IS RENORMALIZABLE IN 2 + 1 DIMENSIONS [J].

ROSENSTEIN, B ;

WARR, BJ ;

PARK, SH .

PHYSICAL REVIEW LETTERS, 1989, 62 (13) :1433-1436

[26] QUANTIZED MAGNETIC-SUSCEPTIBILITY IN (2+1)-DIMENSIONAL GAPLESS SEMICONDUCTORS [J].

SCHAKEL, AMJ ;

SEMENOFF, GW .

PHYSICAL REVIEW LETTERS, 1991, 66 (20) :2653-2656

[27] SOLITON EXCITATIONS IN POLYACETYLENE [J].

SU, WP ;

SCHRIEFFER, JR ;

HEEGER, AJ .

PHYSICAL REVIEW B, 1980, 22 (04) :2099-2111

[28] SOLITONS IN POLYACETYLENE [J].

SU, WP ;

SCHRIEFFER, JR ;

HEEGER, AJ .

PHYSICAL REVIEW LETTERS, 1979, 42 (25) :1698-1701

[29] CONTINUUM MODEL FOR SOLITONS IN POLYACETYLENE [J].

TAKAYAMA, H ;

LINLIU, YR ;

MAKI, K .

PHYSICAL REVIEW B, 1980, 21 (06) :2388-2393

[30] Vacuum structure of the ((psi)over-bar psi)(3)(2)-model, accounting for the magnetic field and chemical potential [J].

Vshivtsev, AS ;

Klimenko, KG ;

Magnitsky, BV .

THEORETICAL AND MATHEMATICAL PHYSICS, 1996, 106 (03) :319-327

← 1 2 3 4 →