Endres, B. and Ciorga, M. and Schmid, M. and Utz, M. and Bougeard, D. and Weiss, D. and Bayreuther, G. and Back, C. H. (2013) Demonstration of the spin solar cell and spin photodiode effect. NATURE COMMUNICATIONS, 4: 2068. pp. 1-5. ISSN 2041-1723,
Full text not available from this repository. (Request a copy)Abstract
Spin injection and extraction are at the core of semiconductor spintronics. Electrical injection is one method of choice for the creation of a sizeable spin polarization in a semiconductor, requiring especially tailored tunnel or Schottky barriers. Alternatively, optical orientation can be used to generate spins in semiconductors with significant spin-orbit interaction, if optical selection rules are obeyed, typically by using circularly polarized light at a well-defined wavelength. Here we introduce a novel concept for spin injection/extraction that combines the principle of a solar cell with the creation of spin accumulation. We demonstrate that efficient optical spin injection can be achieved with unpolarized light by illuminating a p-n junction where the p-type region consists of a ferromagnet. The discovered mechanism opens the window for the optical generation of a sizeable spin accumulation also in semiconductors without direct band gap such as Si or Ge.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | P-N-JUNCTIONS; INJECTION; SEMICONDUCTORS; FERROMAGNET; TRANSPORT; SILICON; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Dominique Bougeard Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Apr 2020 13:18 |
| Last Modified: | 06 Apr 2020 13:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/16405 |
Actions (login required)
 |
View Item |
