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Oscillator-strength modification of Stark ladder transitions due to resonance-induced wavefunction delocalization in a GaAs/AlAs superlattice under the electric field
http://hdl.handle.net/10228/415
http://hdl.handle.net/10228/415b31226c6-9e9f-4c2c-904f-1ff6181962a1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysicaE_revised_.pdf (52.1 kB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||
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| 公開日 | 2007-11-26 | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| タイトル | ||||||
| タイトル | Oscillator-strength modification of Stark ladder transitions due to resonance-induced wavefunction delocalization in a GaAs/AlAs superlattice under the electric field | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 著者 |
Nogami, T
× Nogami, T× Takeda, T× 藤原, 賢三 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Spatially direct and indirect Stark ladder optical transitions and their electric-field-induced evolution have been investigated in a GaAs/AlAs (LZ=6.4 nm/LB=0.9 nm) superlattice by low-temperature photocurrent spectroscopy. When the ground and first excited electron Stark ladder states resonate between the nearest-neighbor wells, it is found that oscillator strengths of the direct (n=0) and indirect (n=+1) Stark ladder transitions are strongly modified, accompanying enhanced anticrossings. The observed modification effects on the oscillator strength of the transitions are rigorously explained in terms of the wave function delocalization after the complete Wannier–Stark localization due to the resonant couplings between the adjacent wells, based on transfer matrix calculations of the ladder eigenstate and the wave function overlap integrals between the electron and hole subband states. | |||||
| 書誌情報 |
Physica E: Low-dimensional Systems and Nanostructures 巻 9, 号 2, p. 236-242, 発行日 2001-02 |
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| 出版社 | ||||||
| 出版者 | Elsevier | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/S1386-9477(00)00281-2 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1386-9477 | |||||
| 著作権関連情報 | ||||||
| 権利情報 | Copyright (c) 2001 Elsevier Science B.V. | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Stark ladder transitions | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Wave function delocalization | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Superlattice | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | GaAs/AlAs | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 査読の有無 | ||||||
| 値 | yes | |||||
| 情報源 | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.sciencedirect.com/science/journal/13869477 | |||||
| 関連名称 | http://www.sciencedirect.com/science/journal/13869477 | |||||
