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Resonant subband Landau level coupling in symmetric quantum well
Tung LC (Tung L. -C.); Wu XG (Wu X. -G.); Pfeiffer LN (Pfeiffer L. N.); West KW (West K. W.); Wang YJ (Wang Y. -J.); Tung, LC, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. 电子邮箱地址: tung@magnet.fsu.edu
2010
Source PublicationJOURNAL OF APPLIED PHYSICS
Volume108Issue:8Pages:Art. No. 083502
AbstractSubband structure and depolarization shifts in an ultrahigh mobility GaAs/Al0.24Ga0.76As quantum well are studied using magnetoinfrared spectroscopy via resonant subband Landau level coupling. Resonant couplings between the first and up to the fourth subbands are identified by well-separated antilevel-crossing split resonance, while the hy-lying subbands were identified by the cyclotron resonance linewidth broadening in the literature. In addition, a forbidden intersubband transition (first to third) has been observed. With the precise determination of the subband structure, we find that the depolarization shift can be well described by the semiclassical slab plasma model and the possible origins for the forbidden transition are discussed.
metadata_24国际
KeywordTilted Magnetic-fields Electron-gas Depolarization Shift Cyclotron-resonance Matrix-elements Heterojunctions Spectroscopy Technology Absorption Systems
Subject Area半导体物理
Funding OrganizationWe like to thank P. Cadden-Zimansky and Jinbo Qi for their assistance. The measurements were performed at NHMFL at Tallahassee, supported by National Science Foundation and the state of Florida.
Indexed BySCI
Language英语
Date Available2010-12-05
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/20660
Collection半导体超晶格国家重点实验室
Corresponding AuthorTung, LC, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. 电子邮箱地址: tung@magnet.fsu.edu
Recommended Citation
GB/T 7714
Tung LC ,Wu XG ,Pfeiffer LN ,et al. Resonant subband Landau level coupling in symmetric quantum well[J]. JOURNAL OF APPLIED PHYSICS,2010,108(8):Art. No. 083502.
APA Tung LC ,Wu XG ,Pfeiffer LN ,West KW ,Wang YJ ,&Tung, LC, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. 电子邮箱地址: tung@magnet.fsu.edu.(2010).Resonant subband Landau level coupling in symmetric quantum well.JOURNAL OF APPLIED PHYSICS,108(8),Art. No. 083502.
MLA Tung LC ,et al."Resonant subband Landau level coupling in symmetric quantum well".JOURNAL OF APPLIED PHYSICS 108.8(2010):Art. No. 083502.
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