Spin Polarization by Tilted Magnetic Field in Wide Ga1−xAlxAs Parabolic Quantum Wells
| Autor: | G. M. Gusev, I. C. da Cunha Lima, J. R. Leite |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Thin layers Physics and Astronomy (miscellaneous) Spin polarization Condensed matter physics Fermi level Charge (physics) Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field symbols.namesake Density of states symbols Fermi gas Quantum well |
| Zdroj: | Journal of Superconductivity. 18:169-173 |
| ISSN: | 1572-9605 0896-1107 |
| Popis: | Wide parabolic wells can be created by properly controlling the Al content during the growth of successive Ga1−xAlxAs thin layers. Under a tilted magnetic field these systems present interesting transport properties, which are associated to their composition dependent g-factor. We present an exact solution for the eigenstates of an electron gas inside such a quantum well. We calculate the renormalized cyclotron frequencies as functions of the angle of tilt, as well as the density of states, and the Fermi level. We discuss the conditions for the existence of spin-polarized charge. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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