Magneto-thermoelectric effects in two-dimensional quantum well: role of short-range potential

Autor:	F.M. Hashimzade, Kh A Hasanov, B. H. Mehdiyev, S. Cakmak
Rok vydání:	2009
Předmět:	Physics Electron density Condensed matter physics Seebeck coefficient Quantum limit Quantum point contact Thermomagnetic convection Condensed Matter Physics Fermi gas Mathematical Physics Atomic and Molecular Physics and Optics Quantum well Magnetic field
Zdroj:	Physica Scripta. 81:015701
ISSN:	1402-4896 0031-8949
Popis:	We have studied transverse thermomagnetic effects in a quantum well (QW) with parabolic potential in the presence of a magnetic field parallel to the two-dimensional electron gas layer. The calculation was carried out for the case of elastic electron scattering on short-range potential for degenerate and non-degenerate electron gas. It is shown that the reviewed mechanism of charge carriers' relaxation is essential for the electroconductivity at low temperatures. In the quantum limit, the dependencies of the transverse Nernst–Ettingshausen coefficient and the thermopower on the magnetic field strength, the temperature and the carrier density are determined and analyzed. We have showed that the magnetothermopower is not determined by the entropy only, as is the case for bulk specimens.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a7186b43c9753d71baa0b5f289ea0cdb https://doi.org/10.1088/0031-8949/81/01/015701 Zobrazit plný text záznamu