Putz, Sebastian and Gmitra, Martin and Fabian, Jaroslav (2014) Anisotropic optical properties of Fe/GaAs(001) nanolayers from first principles. PHYSICAL REVIEW B, 90 (4): 045315. ISSN 1098-0121, 1550-235X
Full text not available from this repository.Abstract
We investigate the anisotropy of the optical properties of thin Fe films on GaAs(001) from first-principles calculations. Both intrinsic and magnetization-induced anisotropy are covered by studying the system in the presence of spin-orbit coupling and external magnetic fields. We use the linearized augmented plane wave method, as implemented in the WIEN2K density functional theory code, to show that the C-2v symmetric anisotropy of the spin-orbit coupling fields at the Fe/GaAs(001) interface manifests itself in the corresponding anisotropy of the optical conductivity and the polar magneto-optical Kerr effect. While their magnetization-induced anisotropy is negligible, the intrinsic anisotropy of the optical properties is significant and reflects the underlying C-2v symmetry of the Fe/GaAs(001) interface. This suggests that the effects of anisotropic spin-orbit coupling fields in experimentally relevant Fe/GaAs(001) slabs can be studied by purely optical means.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EPITAXIAL FE FILMS; BRILLOUIN-ZONE INTEGRATIONS; MAGNETIC ANISOTROPIES; ULTRATHIN FILMS; SPIN INJECTION; SEMICONDUCTOR; SPINTRONICS; INTERFACE; GAAS(001); AU; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Sep 2019 12:09 |
| Last Modified: | 12 Sep 2019 12:09 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9860 |
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