Halm, Simon and Bacher, G. and Schuster, E. and Keune, W. and Sperl, M. and Puls, J. and Henneberger, F. (2007) Local spin manipulation in ferromagnet-semiconductor hybrids. APPLIED PHYSICS LETTERS, 90 (5): 051916. ISSN 0003-6951, 1077-3118
Full text not available from this repository. (Request a copy)Abstract
The authors demonstrate the usage of magnetic fringe fields from nanoscale ferromagnets to locally control the spin degree of freedom in a semiconductor. Fringe fields stemming from Fe/Tb multilayer ferromagnets induce a local, remanent out-of-plane magnetization in a ZnCdMnSe dilute magnetic semiconductor quantum well, which in turn aligns the spin of photogenerated carriers via sp-d exchange interaction. The authors achieve a local exciton spin polarization of up to +/- 12% at 4 K without the need of an external magnetic field. The spin polarization can be controlled in sign and magnitude via the magnetization of the ferromagnet and is observable up to T=80 K.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETIC SEMICONDUCTOR; SPINTRONICS; TRANSPORT; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Dec 2020 07:15 |
| Last Modified: | 23 Dec 2020 07:15 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33281 |
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