Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure
We theoretically investigate spin polarization for electrons in magnetically and electrically confined semiconductor microstructure, which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on top and bottom of GaAs/AlxGa1-xAs heterostructure, respectively. Both Zeeman i...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379721009347 |
| _version_ | 1818983259807154176 |
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| author | Shuai-Quan Yang Mao-Wang Lu Qing-Meng Guo Ying-jie Qin Shi-Shi Xie |
| author_facet | Shuai-Quan Yang Mao-Wang Lu Qing-Meng Guo Ying-jie Qin Shi-Shi Xie |
| author_sort | Shuai-Quan Yang |
| collection | DOAJ |
| description | We theoretically investigate spin polarization for electrons in magnetically and electrically confined semiconductor microstructure, which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on top and bottom of GaAs/AlxGa1-xAs heterostructure, respectively. Both Zeeman interaction and spin–orbit coupling are taken into account; however, electron-spin polarization comes mainly from the latter due to a small effective g-factor for GaAs. Besides, both magnitude and sign of spin polarization can be manipulated by changing interfacial confining electric field or strain engineering, resulting in a tunable electron-spin filter for spintronics device applications. |
| first_indexed | 2024-12-20T18:00:16Z |
| format | Article |
| id | doaj.art-48b3c095b00743ee8e791652a3099631 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-20T18:00:16Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-48b3c095b00743ee8e791652a30996312022-12-21T19:30:39ZengElsevierResults in Physics2211-37972021-11-0130104898Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructureShuai-Quan Yang0Mao-Wang Lu1Qing-Meng Guo2Ying-jie Qin3Shi-Shi Xie4College of Science, Guilin University of Technology, Guilin 541004, ChinaCorresponding author.; College of Science, Guilin University of Technology, Guilin 541004, ChinaCollege of Science, Guilin University of Technology, Guilin 541004, ChinaCollege of Science, Guilin University of Technology, Guilin 541004, ChinaCollege of Science, Guilin University of Technology, Guilin 541004, ChinaWe theoretically investigate spin polarization for electrons in magnetically and electrically confined semiconductor microstructure, which is constructed by patterning a ferromagnetic stripe and a Schottky-metal stripe on top and bottom of GaAs/AlxGa1-xAs heterostructure, respectively. Both Zeeman interaction and spin–orbit coupling are taken into account; however, electron-spin polarization comes mainly from the latter due to a small effective g-factor for GaAs. Besides, both magnitude and sign of spin polarization can be manipulated by changing interfacial confining electric field or strain engineering, resulting in a tunable electron-spin filter for spintronics device applications.http://www.sciencedirect.com/science/article/pii/S2211379721009347Magnetically and electrically confined semiconductor microstructureZeeman interactionSpin-orbit couplingElectron-spin polarizationControllable electron-spin filter |
| spellingShingle | Shuai-Quan Yang Mao-Wang Lu Qing-Meng Guo Ying-jie Qin Shi-Shi Xie Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure Results in Physics Magnetically and electrically confined semiconductor microstructure Zeeman interaction Spin-orbit coupling Electron-spin polarization Controllable electron-spin filter |
| title | Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure |
| title_full | Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure |
| title_fullStr | Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure |
| title_full_unstemmed | Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure |
| title_short | Spin-orbit-coupling induced electron-spin polarization in magnetically and electrically confined semiconductor microstructure |
| title_sort | spin orbit coupling induced electron spin polarization in magnetically and electrically confined semiconductor microstructure |
| topic | Magnetically and electrically confined semiconductor microstructure Zeeman interaction Spin-orbit coupling Electron-spin polarization Controllable electron-spin filter |
| url | http://www.sciencedirect.com/science/article/pii/S2211379721009347 |
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