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Study of covalent spin interactions in Cd1-xMnxSe by cryobaric magnetophotoluminescence
http://hdl.handle.net/2298/10510
http://hdl.handle.net/2298/1051069ee8273-97dc-4181-ac98-d90b1485fb35
| 名前 / ファイル | ライセンス | アクション |
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![論文[11].pdf](/static/images/icon/icon_16_pdf.jpg){kind=icon}
論文[11].pdf (201.8 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2009-01-23 | |||||
| タイトル | ||||||
| タイトル | Study of covalent spin interactions in Cd1-xMnxSe by cryobaric magnetophotoluminescence | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | Cd1-xMnxSe, diluted magnetic semiconductors, magnetophotoluminescence, exchange interactions | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Kuroda, Noritaka
× Kuroda, Noritaka× 松田, 康弘× Kido, Giyuu× 茂木, 巌× Anderson, J.R.× Giriat, W. |
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| 内容記述 | ||||||
| 内容記述 | Pressure dependence of exchange interactions among small Mn clusters scattered throughout the network of sp3 covalent bonds in a diluted magnetic semiconductor Cd1-xMnxSe has been studied by a cryobaric measurement of the exciton magnetophotoluminescence. The pressure is generated up to 2 GPa with a diamond anvil cell, being subjected at low temperatures to the static magnetic field up to 23 T generated with a hybrid magnet. The observed specific spin temperature T0 of the clusters gives the effective internal exchange constant J*/k≡J2/k +(10/3)J3/k +2J4/k to be –2.0±0.4 K at 1 atm, where Jn denotes nth-neighbor exchange constant. The nearest-neighbor interaction constant is obtained to be J1/k = -7.4±0.4 K at 1 atm from an analysis of the effect of the stepwise magnetization of Mn pairs. J*, as well as J1, increases rapidly with increasing pressure. The pressure coefficient dln|J*|/dP = 0.2-0.4 GPa-1 agrees with dln|J1|/dP = 0.25±0.05 GPa-1 within experimental errors. This result supports Larson's covalent spin interaction picture that the exchange interactions between the scattered, localized spins are determined by kinetic exchanges mediated by the extended p orbitals making the valence band of the host II-VI semiconductor. | |||||
| 書誌情報 |
Materials science in static high magnetic fields p. 149-165, 発行年 2002 |
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| ISBN | ||||||
| 関連識別子 | 3540419950 | |||||
| 書誌レコードID | ||||||
| 識別子タイプ | NCID | |||||
| 関連識別子 | BA55727996 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 関連識別子 | https://doi.org/10.1007/978-3-642-56312-6_11 | |||||
| 権利 | ||||||
| 権利情報 | © 2002 Springer. | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 90721 bytes | ||||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 431.7 | |||||
| 出版者 | ||||||
| 出版者 | Springer | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 雑誌掲載論文 | ||||||
| 資源タイプ・NII | ||||||
| Journal Article | ||||||
| 資源タイプ・DCMI | ||||||
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| 資源タイプ・ローカル表示コード | ||||||
| 01 | ||||||
| コメント | ||||||
| 黒田規敬: 熊本大学大学院自然科学研究科マテリアル工学講座・工学部マテリアル工学科 | ||||||
| コメント | ||||||
| 当該図書は Advances in materials research vol. 4 にあたる | ||||||
