| Autor: |
Otake, Hirotaka, Kuroda, Takamasa, Tackeuchi, Atsushi, Taniguchi, Kazuyoshi, Chinone, Takako, Ji-Hao Liang, Kajikawa, Masataka, Horio, Naochika |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2007, Vol. 893 Issue 1, p1315-1316, 2p, 1 Diagram, 3 Graphs |
| Abstrakt: |
The spin relaxation process of acceptor-bound excitons in wurtzite GaN is observed by spin-dependent pump and probe reflectance measurement with subpicosecond time resolution. The time evolutions measured at 15–50 K have a single exponential component corresponding to spin relaxation times of 1.40 – 1.14 ps. The spin relaxation time, τs, is found to be proportional to T-0.175, where T is the temperature. This temperature dependence is quite weak compared with that of A-band free excitons showing τs ∝ T-1.41 at 150 – 225K. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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