Magnetization of planar four-fermion systems

Journal Article · Tue Sep 15 00:00:00 EDT 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.80.115428· OSTI ID:21287072

Caldas, Heron ^[1]; Ramos, Rudnei O ^[2]

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1. Departamento de Ciencias Naturais, Universidade Federal de Sao Joao del Rei, 36301-160 Sao Joao del Rei, MG (Brazil)
2. Departamento de Fisica Teorica, Universidade do Estado do Rio de Janeiro, 20550-013 Rio de Janeiro, RJ (Brazil)

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.

• OSTI ID: 21287072
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 80, Issue 11; Other Information: DOI: 10.1103/PhysRevB.80.115428; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARBON
DENSITY
ELECTRONS
FERMIONS
FILMS
FREE ENERGY
MAGNETIC FIELDS
MAGNETIZATION
NANOSTRUCTURES
POLARIZATION
POLYMERS
SPIN
SPIN ORIENTATION
TWO-DIMENSIONAL CALCULATIONS
ZEEMAN EFFECT