摘要
Weak anti-localization of the two-dimensional electron gas (2DEG) in a modulation-doped Al0.22Ga0.78N/GaN single heterostructure has been investigated through magnetoresistance measurements at low temperatures. The elastic scattering time τe, dephasing time τφ and spin-orbit scattering time τso at various temperatures are obtained. When the second subband in the triangular quantum well at the heterointerface is occupied by the 2DEG, the weak anti-localization is observed clearly, which is thought to be due to the strong spin-orbit effect induced by the intersubband scattering. The spin-orbit effect and the intersubband scattering become stronger with increasing temperature.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 3125-3127 |
| 页数 | 3 |
| 期刊 | Applied Physics Letters |
| 卷 | 85 |
| 期 | 15 |
| DOI | |
| 出版状态 | 已出版 - 11 10月 2004 |
| 已对外发布 | 是 |
指纹
探究 'Weak anti-localization of the two-dimensional electron gas in modulation-doped AlxGa1-xN/GaN heterostructures with two subbands occupation' 的科研主题。它们共同构成独一无二的指纹。引用此
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver