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http://hdl.handle.net/1942/6461
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| Title: | Electrical spin injection in a ferromagnet/tunnel barrier/semiconductor heterostructure |
| Authors: | Motsnyi, V.F.
DE BOECK, Joan
Das, J.
van Roy, W.
Borghs, G.
Goovaerts, E.
Safarov, V.I. |
| Issue Date: | 2002 |
| Citation: | Applied physics letters, 81. p. 265-267 |
| Abstract: | We demonstrate experimentally the electrical electron spin injection from a ferromagnetic metal/tunnel barrier contact into a III–V semiconductor light emitting diode (LED). The injected electrons have in-plane spin orientation. By applying a relatively small oblique external magnetic field this spin orientation within the semiconductor can be manipulated to have a nonzero out-of-plane component. By measuring the resulting circular polarization of the emitted light, we observe injected spin polarization in excess of 9% at 80 K in a CoFe/AlOx/(Al,Ga)As/GaAs surface-emitting spin-LED. |
| URI: | http://hdl.handle.net/1942/6461 |
| DOI: | 10.1063/1.1491010 |
| ISI #: | 000176487400027 |
| ISSN: | 0003-6951 |
| Category: | A1 |
| Type: | Journal Contribution |
| Appears in Collections: | Research publications
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