Correlated electronic states at a ferromagnetic oxide interface
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866912910449573888 |
|---|---|
| author | Jones, D. Weh, A. Östlin, A. Braak, D. Kopp, T. Seiler, P. Eckern, U. Chioncel, L. |
| author_facet | Jones, D. Weh, A. Östlin, A. Braak, D. Kopp, T. Seiler, P. Eckern, U. Chioncel, L. |
| contents | We propose a minimal tight-binding model for the electronic interface layer of the LaAlO$_3$/SrTiO$_3$ heterostructure with oxygen vacancies. In this model, the effective carriers are subject to oxygen vacancy induced magnetic impurities. Both the effects of random on-site potentials and Zeeman-like exchange interactions between correlated carriers and magnetic impurities are taken into account. By applying the combined coherent potential approximation (CPA) and dynamical mean-field theory (DMFT) for a ferromagnetic state, we uncover a disordered Fermi-liquid regime for the majority-spins and a low energy scale which controls the transport of the minority-spin carriers, both induced by the magnetic impurities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_15774 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Correlated electronic states at a ferromagnetic oxide interface Jones, D. Weh, A. Östlin, A. Braak, D. Kopp, T. Seiler, P. Eckern, U. Chioncel, L. Strongly Correlated Electrons Disordered Systems and Neural Networks We propose a minimal tight-binding model for the electronic interface layer of the LaAlO$_3$/SrTiO$_3$ heterostructure with oxygen vacancies. In this model, the effective carriers are subject to oxygen vacancy induced magnetic impurities. Both the effects of random on-site potentials and Zeeman-like exchange interactions between correlated carriers and magnetic impurities are taken into account. By applying the combined coherent potential approximation (CPA) and dynamical mean-field theory (DMFT) for a ferromagnetic state, we uncover a disordered Fermi-liquid regime for the majority-spins and a low energy scale which controls the transport of the minority-spin carriers, both induced by the magnetic impurities. |
| title | Correlated electronic states at a ferromagnetic oxide interface |
| topic | Strongly Correlated Electrons Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2602.15774 |