| Autor: |
Tackeuchi, Atsushi, Otake, Hirotaka, Ogawa, Yusuke, Ushiyama, Takafumi, Fujita, Taisuke, Takano, Fumiyoshi, Akinaga, Hiro |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2007, Vol. 893 Issue 1, p1335-1336, 2p, 3 Graphs |
| Abstrakt: |
The excitonic spin relaxation in cubic GaN is observed by spin-dependent pump and probe reflectance measurements with sub-picosecond time resolution. The spin relaxation times at 15 – 75 K are found to be longer than 5 ns and short spin relaxation times on the picosecond order are not present. Although these long spin relaxation times are in striking contrast to the sub-picosecond spin relaxation of A-band free excitons in hexagonal GaN, they are consistent with the dependence that spin relaxation time becomes longer for wider-band-gap zincblende semiconductors. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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