Magneto-transport of electrons in a nonhomogeneous magnetic field
| Autor: | S.M. Badalian, I. S. Ibrahim, V. A. Schweigert, François M. Peeters |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Materials science
Magnetoresistance Condensed matter physics Heterojunction Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Magnetic field Condensed Matter::Materials Science Distribution function Electric field General Materials Science Electrical and Electronic Engineering Fermi gas Magneto |
| Zdroj: | Superlattices and microstructures |
| ISSN: | 0749-6036 |
| DOI: | 10.1006/spmi.1996.0239 |
| Popis: | We investigate the magnetoresistance of a two-dimensional electron gas (2DEG) in the presence of a magnetic tunnel barrier of μm width. The classical 2D electrostatic problem is solved numerically from which we obtain the potential, electric field and current distribution in the 2DEG. We found that most of the electrons are injected at the edges of the magnetic barrier. Our results reproduce the positive background resistance observed by M. L. Leadbeater et al . [Phys. Rev. B52 , R8629 (1995)] in the magnetoresistance of a nonplanar GaAs/AlGaAs heterojunction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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