Phonon mediated spin polarization in a one-dimensional Aubry-Andre-Harper chain
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918086707249152 |
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| author | Mondal, Moumita Maiti, Santanu K. |
| author_facet | Mondal, Moumita Maiti, Santanu K. |
| contents | A comparative study of electronic transport and spin polarization between clean and Aubry-Andre-Harper chains in the presence of electron-electron (e-e) and electron-phonon (e-ph) interactions is presented. The entire system is simulated within a tight-binding framework based on the Hubbard-Holstein model. Trans-mission probability and spin polarization are evaluated using the Green's function method under the Hartree-Fock mean-field approximation through a self-consistent procedure. The transmission profile is found to be consistent with the band structure, which is also discussed. An overall enhancement of spin polariza-tion induced by e-ph interaction is reported for the first time, to the best of our knowledge. Our analysis may be useful for studying controlled spin-selective electron transmission in the presence of e-ph coupling. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_05906 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Phonon mediated spin polarization in a one-dimensional Aubry-Andre-Harper chain Mondal, Moumita Maiti, Santanu K. Mesoscale and Nanoscale Physics A comparative study of electronic transport and spin polarization between clean and Aubry-Andre-Harper chains in the presence of electron-electron (e-e) and electron-phonon (e-ph) interactions is presented. The entire system is simulated within a tight-binding framework based on the Hubbard-Holstein model. Trans-mission probability and spin polarization are evaluated using the Green's function method under the Hartree-Fock mean-field approximation through a self-consistent procedure. The transmission profile is found to be consistent with the band structure, which is also discussed. An overall enhancement of spin polariza-tion induced by e-ph interaction is reported for the first time, to the best of our knowledge. Our analysis may be useful for studying controlled spin-selective electron transmission in the presence of e-ph coupling. |
| title | Phonon mediated spin polarization in a one-dimensional Aubry-Andre-Harper chain |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2504.05906 |