Theoretical Calculation of Drag Component of Tensor M in Quantizing Magnetic Field

Autor:	J.P. Oxley, B.G. Mulimani, G. Qin, B. L. Gallagher, P. N. Butcher
Rok vydání:	1995
Předmět:	Physics Condensed Matter::Materials Science Transverse plane Physics and Astronomy (miscellaneous) Condensed matter physics Phonon Drag Mean free path Heterojunction Landau quantization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Phonon drag Magnetic field
Zdroj:	Communications in Theoretical Physics. 23:11-18
ISSN:	0253-6102
DOI:	10.1088/0253-6102/23/1/11
Popis:	All the previous homogeneous theories result in which are at variance with the experimental data. It is for this reason, previous theories have consistently used experimental value of in calculating thermopower tensor . The inhomogeneous and non-equilibrium formalism proposed by Dyakin et al. was generalized to including both transverse and longitudinal modes of electron-phonon interaction and considering the broadening of the Landau level. The resulting formula gives theoretical values of for GaAs/AlGaAs heterojunctions which are in accord with experimental data at oscillation phases but times smaller than experimental data for and where and are the phonon mean free path and effective thickness of the heterojunctions. By means of the semi-empirical formula of with extra factor in, phonon drag magnetothermopower can be calculated from theoretical values of and .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb816da3c273d4239b4efc2dc62ee29f https://doi.org/10.1088/0253-6102/23/1/11 Zobrazit plný text záznamu