| Autor: | Xia Jb, Chang K, François M. Peeters, Wu Hb |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Physics
Zeeman effect Physics and Astronomy (miscellaneous) Condensed matter physics Spins Astrophysics::High Energy Astrophysical Phenomena Scanning tunneling spectroscopy Fermi energy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials General Relativity and Quantum Cosmology symbols.namesake Tunnel effect Condensed Matter::Superconductivity symbols Quantum Quantum tunnelling Quantum well |
| Zdroj: | Journal of Superconductivity. 16:279-282 |
| ISSN: | 0896-1107 |
| DOI: | 10.1023/a:1023644831915 |
| Popis: | Using the multiband quantum transmitting boundary method (MQTBM), hole resonant tunneling through AlGaAs/GaMnAs junctions is investigated theoretically. Because of band-edge splitting in the DMS layer, the current for holes with different spins are tuned in resonance at different biases. The bound levels of the "light" hole in the quantum well region turned out to be dominant in the tunneling channel for both "heavy" and "light" holes. The resonant tunneling structure can be used as a spin filter for holes for adjusting the Fermi energy and the thickness of the junctions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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