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Electronic excitations in a nonparabolic conduction band of an n-type narrow-gap semiconductor
https://iwate-u.repo.nii.ac.jp/records/10110
https://iwate-u.repo.nii.ac.jp/records/10110dbb12b48-3745-456d-8094-780041c7d2fa
| 名前 / ファイル | ライセンス | アクション |
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prb-v65i8p085207.pdf (135.8 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2012-01-10 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Electronic excitations in a nonparabolic conduction band of an n-type narrow-gap semiconductor | |||||||||||
| 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 | |||||||||||
| 著者 |
YAMAGUCHI, Mitsutaka
× YAMAGUCHI, Mitsutaka
× INAOKA, Takeshi
× HASEGAWA, Masayuki
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| 著者(機関) | ||||||||||||
| 値 | Department of Materials Science and Technology, Faculty of Engineering, Iwate University, Present address:Aomori River Techno Co. Ltd. |
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| 著者(機関) | ||||||||||||
| 値 | Department of Materials Science and Technology, Faculty of Engineering, Iwate University | |||||||||||
| 著者(機関) | ||||||||||||
| 値 | Department of Materials Science and Technology, Faculty of Engineering, Iwate University | |||||||||||
| 登録日 | ||||||||||||
| 日付 | 2012-01-10 | |||||||||||
| 書誌情報 |
Physical Review B 巻 65, 号 8, p. 085207-1-085207-9, 発行日 2002-01-01 |
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| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1098-0121 | |||||||||||
| Abstract | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | Taking full account of nonparabolicity of a conduction-band dispersion, we investigate those electronic excitations in the conduction band of an n-type narrow-gap semiconductor which are coupled with polar phonons. By incorporating the nonparabolic dispersion obtained by a k⋅p method in a complete manner into the random-phase approximation, we calculate the energy dispersion and the energy-loss intensity of two coupled plasmon-phonon modes and a longitudinal optical-phonon mode partially screened by carriers. The results are compared with those of two simplified treatments, namely, one with the spin-orbit splitting neglected and the other assuming a parabolic dispersion of the conduction band with its effective mass modified. This comparison asserts that complete treatment of the nonparabolic dispersion is indispensible to quantitative analysis of the plasmonlike mode at higher carrier concentrations. Simultaneously, it elucidates limitations and shortcomings of the simplified schemes. The complete treatment of the nonparabolicity leads to an excellent agreement with the experiment on the carrier-concentration dependence of an intensity-vanishing point in the infrared-reflection spectrum. | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | American Physical Society | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | (C) 2002 The American Physical Society | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1103/PhysRevB.65.085207 | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
