NEAR-RESONANT RAMAN-SCATTERING FROM GAAS/ALAS SUPERLATTICES
文献类型：期刊论文
| 作者 | HAN HX ; WANG ZP ; LI GH ; JIANG DS ; PLOOG K |
| 刊名 | chinese physics
 |
| 出版日期 | 1992 |
| 卷号 | 12期号:4页码:846-852 |
| 关键词 | GAAS-ALAS SUPERLATTICES INTERFACE VIBRATIONAL-MODES CONFINED LO PHONONS |
| ISSN号 | 0273-429x |
| 通讯作者 | han hx acad sinicainst semicondnatl lab superlattices & microstructbeijing 100083peoples r china |
| 中文摘要 | this article presents the results of near-resonant raman scattering measurements on gaas/alas superlattices at room temperature. a strong enhancement of gaas lo phonon-even modes resulted owing to a dipole-allowed frohlich interaction in superlattices. similar to the previous results, the lo phonon-even modes in a polarized configuration are observed. in contrast to previous work, however, what we observed in depolarized configurations is the lo phonon-odd modes instead of even modes. it is confirmed that the selection rules for near-resonant raman scattering from lo phonons in this kind of superlattices are the same as those for off-resonant scattering. from the second-order raman scattering, it is confirmed that polarized second-order raman scattering spectra consist of overtones and combinations of two even modes, and depolarized second-order raman scattering spectra consist of combinations of an even mode and an odd mode. our experimental results coincide with the predictions using the recently developed huang-zhu model. a brief discussion on interface modes and their combination with confined modes is also presented. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-11-15 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/14129]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | HAN HX,WANG ZP,LI GH,et al. NEAR-RESONANT RAMAN-SCATTERING FROM GAAS/ALAS SUPERLATTICES[J]. chinese physics,1992,12(4):846-852. |
| APA | HAN HX,WANG ZP,LI GH,JIANG DS,&PLOOG K.(1992).NEAR-RESONANT RAMAN-SCATTERING FROM GAAS/ALAS SUPERLATTICES.chinese physics,12(4),846-852. |
| MLA | HAN HX,et al."NEAR-RESONANT RAMAN-SCATTERING FROM GAAS/ALAS SUPERLATTICES".chinese physics 12.4(1992):846-852. |
入库方式： OAI收割
来源：半导体研究所
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