Spin injection across a hybrid heterojunction: Theoretical understanding and experimental approach (invited)
| Autor: | Toru Matsuyama, Detlef Heitmann, J. Nitta, Ane Jensen, Hideaki Takayanagi, Jørn Hansen, C. M. Hu, Ulrich Merkt |
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| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Materials science
Condensed matter physics Spin polarization business.industry Condensed Matter::Other General Physics and Astronomy Heterojunction Giant magnetoresistance Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter::Materials Science Semiconductor Ferromagnetism Optoelectronics Condensed Matter::Strongly Correlated Electrons Fermi gas Spin injection business Quantum well |
| Zdroj: | Hu, C M, Nitta, J, Jensen, A, Hansen, J B, Takayanagi, H, Matsuyama, T, Heitmann, D & Merkt, U 2002, ' Spin injection across a hybrid heterojunction: Theoretical understanding and experimental approach (invited) ', Journal of Applied Physics, vol. 91, no. 10, pp. 7251-7255 . https://doi.org/10.1063/1.1447282 |
| ISSN: | 0021-8979 |
| DOI: | 10.1063/1.1447282 |
| Popis: | Spin injection across a hybrid ferromagnet/semiconductor junction has proven to be difficult, unlike in an all-metal junction used in giant magnetoresistance devices. The difference responsible is highlighted in a simple model. We perform spin-injection-detection experiments on devices with two ferromagnetic contacts on a two-dimensional electron gas confined in an InAs quantum well. We demonstrate that spin injection allows the hybrid device to combine both the advantage of the ferromagnet as well as that of the semiconductor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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