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希薄磁性半導体Cd_<1-x>Mn_xTeの真空紫外光電子・逆光電子分光
https://doi.org/10.11501/3131496
https://doi.org/10.11501/3131496ce14cc3c-f479-4927-9033-799564354636
| 名前 / ファイル | ライセンス | アクション |
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diss_otsu2931.pdf (38.9 MB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||
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| 公開日 | 2023-03-18 | |||||||||
| タイトル | ||||||||||
| タイトル | Ultraviolet Photoemission and Inverse-Photoemission Spectroscopies of Diluted Magnetic Semiconductor Cd_<1-x>Mn_xTe | |||||||||
| 言語 | en | |||||||||
| タイトル | ||||||||||
| タイトル | 希薄磁性半導体Cd_<1-x>Mn_xTeの真空紫外光電子・逆光電子分光 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
三村, 功次郎
× 三村, 功次郎
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 権利情報 | ||||||||||
| 権利情報 | Copyright(c) by Author | |||||||||
| 主題 | ||||||||||
| 主題Scheme | NDC | |||||||||
| 主題 | 540 | |||||||||
| 内容記述 | ||||||||||
| 内容記述 | Valence-band and conduction-band densities of states (DOS's) of Cd1-xMnxTe epitaxial films (0 ≤ x ≤ 0.7) have been investigated by means of in situ measurements of ultraviolet photoemission and inverse-photoemission spectroscopies (UPS and IPES). Based on one-electron band theory, features observed at -3.4 and 3.6 eV relative to the valence-band maximum (VBM) are ascribed to emission from the Mn 3d↑ and 3d↓ states with eg symmetry, respectively, providing a Mn 3d spin-exchange splitting energy (Ueff) of 7.0±0.2 eV. This value compares well with the value predicted in the theoretical investigation of electronic structures and magnetic properties of Cd1-xMnxTe. With increasing Mn concentration, the energy position of the conduction-band minimum shifts almost linearly toward higher energy relative to the VBM as a result of an increasing contribution of the higher-lying Mn 4s level relative to the Cd 5s level. Mn 3d partial DOS's in the valence-band region of Cd1-xMnxTe have been determined from resonant photoemission spectroscopy in the Mn 3p-3d core excitation region. The partial DOS's reveal an appreciable contribution of the Mn 3d states to the top 9 eV of valence bands with three structures; valence bands at 0~-2.5 eV, a main peak at -3.4 eV and a multielectron satellite at -5~-9 eV. These features are almost independent of the Mn concentration. Apart from one-electron band theory, the whole spectrum including the multielectron satellite is found to be well reproduced in terms of the configuration interaction theory using a Mn2+(Te2-)4 model cluster. Electronic structures of zinc-blende MnTe epitaxial films have also been investigated by means of UPS and IPES. The Ueff-value of zinc-blende MnTe is in good agreement with those of Cd1-xMnxTe and Zn 1-xMnxTe. The width of valence bands and Ueff are by 1.3 eV narrower and by 0.3 eV larger than those of NiAs-type MnTe, respectively. | |||||||||
| 言語 | en | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | TableOfContents | |||||||||
| 内容記述 | Contents Abstract / p1 Chapter1.Introduction / p2 References / p7 Chapter2.General description of photoemission and inverse-photoemission spectroscopies / p10 2-1.Photoemission spectroscopy / p10 2-2.Inverse-photoemission spectroscopy / p13 References / p17 Chapter3.Hot wall epitaxy(HWE) / p18 3-1.HWE method / p18 3-2.Details of the HWE apparatus for DMS / p20 References / p28 Chapter4.Experimental details I:ultraviolet photoemission and inverse-photoemission study / p29 4-1.Ultraviolet photoemission and inverse-photoemission spectrometers / p29 4-2.Sample preparation / p33 References / p45 Chapter5.Experimental details II:Resonant photoemission spectroscopy / p47 5-1.Photoemission measurements at SOR-RING / p47 5-2.Sample preparation / p47 References / p49 Chapter6.Results and discussion / p50 6-1.Photoemission and inverse-photoemission study of Cd1-xMnxTe / p50 6-2.Photoemission and inverse-photoemission study of zinc-blende MnTe / p71 References / p77 Chapter7 Conclusion / p80 Acknowledgments / p82 | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | NA | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||
| ID登録 | ||||||||||
| ID登録 | 10.11501/3131496 | |||||||||
| ID登録タイプ | JaLC | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 関連名称 | (1)Mn 3d states of Cd1-xMnxTe (Cd1-xMnxTeのMn3d状態) 1冊, 共著者 三村功次郎、佐藤仁、原田次郎、宮崎圭司、谷口雅樹、植田義文, (学術誌) Journal of Magnetism and Magnetic Materials 140-144, 2017-2018 (1995). (ELSEVIER SCIENCE PUBLISHERS B.V) 1995年出版 | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 関連名称 | (2) Ultraviolet inverse-photoemission and photoemission spectroscopy studies of diluted magnetic semiconductors Cd1-xMnxTe (0≤x≤0.7) (希薄磁性半導体Cd1-xMnxTe(0≤x≤0.7)の真空紫外逆光電子・光電子分光による研究) 1冊, 共著者 谷口雅樹、三村功次郎、佐藤仁、原田次郎、宮崎圭司、生天目博文、植田義文, (学術誌) Physical Review B 51, 6932-6939 (1995). (THE AMERICAN PHYSICAL SOCIETY) 1995年3月15日出版 | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 関連名称 | (3) ULTRAVIOLET INVERSE-PHOTOEMISSION AND PHOTOEMISSION STUDIES OF DILUTED MAGNETIC SEMICONDUCTOR Cd1-xMnxTe (希薄磁性半導体Cd1-xMnxTeの真空紫外逆光電子・光電子分光による研究) 1冊, 共著者 谷口雅樹、三村功次郎、佐藤仁、生天目博文、植田義文, (学術誌) Proceedings of 22nd International Conference on the physics of Semiconductors (Vancouver) 3, 2565-2568 (1994). (World Scientific Publishing Co. Pte. Ltd.) 1995年出版 | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 関連名称 | (4)Ultraviolet inverse-photoemission and photoemission spectroscopies of zincblende MnTe (閃亜鉛鉱型MnTeの真空紫外逆光電子・光電子分光) 1冊, 共著者 三村功次郎、佐藤仁、仙波伸也、生天目博文、谷口雅樹, (学術誌) Physica B, in press. (ELSEVIER SCIENCE PUBLISHERS B.V.) 1997年出版予定 | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | http://dx.doi.org/10.1016/0304-8853(94)00710-1 | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | http://dx.doi.org/10.1103/PhysRevB.51.6932 | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | references | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | http://dx.doi.org/10.1016/S0921-4526(97)00247-0 | |||||||||
| 開始ページ | ||||||||||
| 開始ページ | 1 | |||||||||
| 書誌情報 |
p. 1 |
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| 学位授与番号 | ||||||||||
| 学位授与番号 | 乙第2931号 | |||||||||
| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士(理学) | |||||||||
| 学位名 | ||||||||||
| 言語 | en | |||||||||
| 学位名 | Physical Science | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 1997-02-10 | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 15401 | |||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 広島大学 | |||||||||
| 学位授与機関 | ||||||||||
| 言語 | en | |||||||||
| 学位授与機関名 | Hiroshima University | |||||||||
| 旧ID | 31902 | |||||||||
