Spin-to-charge conversion at KTaO3(111) interfaces
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913719613652992 |
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| author | Al-Tawhid, Athby H. Sun, Rui Comstock, Andrew H. Kumah, Divine P. Sun, Dali Ahadi, Kaveh |
| author_facet | Al-Tawhid, Athby H. Sun, Rui Comstock, Andrew H. Kumah, Divine P. Sun, Dali Ahadi, Kaveh |
| contents | Rashba spin-orbit coupling locks the spin with momentum of charge carriers at the broken inversion interfaces, which could generate a large spin galvanic response. Here, we demonstrate spin-to-charge conversion (inverse Rashba-Edelstein effect) in KTaO3(111) two-dimensional electron systems. We explain the results in the context of electronic structure, orbital character, and spin texture at the KTaO3(111) interfaces. We also show that the angle dependence of the spin-to-charge conversion on in-plane magnetic field exhibits a nontrivial behavior which matches the symmetry of the Fermi states. Results point to opportunities to use spin-to-charge conversion as a tool to investigate the electronic structure and spin texture. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_15080 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spin-to-charge conversion at KTaO3(111) interfaces Al-Tawhid, Athby H. Sun, Rui Comstock, Andrew H. Kumah, Divine P. Sun, Dali Ahadi, Kaveh Materials Science Rashba spin-orbit coupling locks the spin with momentum of charge carriers at the broken inversion interfaces, which could generate a large spin galvanic response. Here, we demonstrate spin-to-charge conversion (inverse Rashba-Edelstein effect) in KTaO3(111) two-dimensional electron systems. We explain the results in the context of electronic structure, orbital character, and spin texture at the KTaO3(111) interfaces. We also show that the angle dependence of the spin-to-charge conversion on in-plane magnetic field exhibits a nontrivial behavior which matches the symmetry of the Fermi states. Results point to opportunities to use spin-to-charge conversion as a tool to investigate the electronic structure and spin texture. |
| title | Spin-to-charge conversion at KTaO3(111) interfaces |
| topic | Materials Science |
| url | https://arxiv.org/abs/2502.15080 |