| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000159061 |
| ISSN: | 0103-9733 |
| Autors: | Gusev, G.M1 Quivy, A.A Leite, J.R Bykov, A.A Moshehov, N.T Kudryashev, V.M Toropov, A.I Nastaushev, Yu. V |
| Institucions: | 1Universidade de Sao Paulo, Instituto de Física, Sao Paulo. Brasil 2Russian Academy of Sciences, Institute of Semiconductor Physics, Novosibirsk. Rusia |
| Any: | 1999 |
| Període: | Dic |
| Volum: | 29 |
| Número: | 4 |
| Paginació: | 711-714 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | We have measured the Shubnikov de Haas (SdH) oscillations of a nonplanar two-dimensional electron gas (2DEG) fabricated by overgrowth of a GaAs/AlGaAs heterojunction on a pre-patterned substrate. When placed in a uniform external magnetic field B, the field normal to the nonplanar 2DEG is spatially modulated, and electrons experience a nonuniform magnetic field. In a tilted magnetic field, the SdH oscillations are much more strongly damped than in a field perpendicular to the substrate. We consider several mechanisms and conclude that the electron scattering by the magnetic field spatial uctuations plays a main role in the transport properties of a nonplanar 2DEG at low magnetic field |
| Disciplines | Física y astronomía |
| Paraules clau: | Física de materia condensada, Semiconductores, Gas de electrones, Heteroestructuras, Magnetotransporte, Sistemas bidimensionales |
| Keyword: | Physics and astronomy, Condensed matter physics, Semiconductors, Electron gas, Heterostructures, Magnetotransport, Bidimensional systems |
| Text complet: | Texto completo (Ver HTML) |
