2DEG in the presence of tilted magnetic field at finite temperature

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 41; no. 7; pp. 1267 - 1271
• Main Authors: Ramos, A.C.A., Alves, T.F.A., Farias, G.A., Costa Filho, R.N., Almeida, N.S.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-06-2009; Elsevier
• Subjects: 2DEG; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Electronic transport in multilayers, nanoscale materials and structures; Exact sciences and technology; Interfacial magnetic properties (multilayers, magnetic quantum wells, superlattices, magnetic heterostructures); Magnetic properties and materials; Magnetic properties of surface, thin films and multilayers; Physics; Thermodynamic properties; Tilted magnetic field; 71.10.Ca; 71.70.−d; 2DEG; Tilted magnetic field; 72.80.−r; 71.70.Di; Thermodynamic properties; Gallium arsenides; Magnetization; Aluminium Gallium Arsenides Mixed; Magnetic field effects; Hall effect; 72.80.-r; Two-dimensional electron gas; Free energy; Magnetic susceptibility; 71.70.-d; Chemical potential; Transport processes; III-V semiconductors
• ISSN: 1386-9477; 1873-1759
• DOI: 10.1016/j.physe.2009.02.011

The effects of finite temperature on a two-dimensional electron gas (2DEG) in the presence of a tilted dc magnetic field are studied. The depolarization induced by a tilted field is analyzed and its influence on the transport and thermodynamical properties of the system is investigated. We analyze the behavior of the chemical potential, free energy, magnetic susceptibility and magnetization as a function of the intensity and direction of an externally applied dc magnetic field at different temperatures. Numerical results are obtained for the Hall conductivity for densities around
10
12
cm
-
2
and magnetic field smaller than 200
kG.