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K-band EPR of photoinduced midgap states in an M-X chain complex [Pt(en)2][Pt(en)2Cl2](ClO4)4, en=ethylenediamine
http://hdl.handle.net/2298/9617
http://hdl.handle.net/2298/96179c50bda3-0b17-4650-8c13-6adc718cc222
名前 / ファイル | ライセンス | アクション |
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PRB_048_4245.pdf (580.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-10-23 | |||||
タイトル | ||||||
タイトル | K-band EPR of photoinduced midgap states in an M-X chain complex [Pt(en)2][Pt(en)2Cl2](ClO4)4, en=ethylenediamine | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | M-X chain complex, MX鎖錯体, photoinduced midgap states, 光誘起ミッドギャップ状態, EPR, 電子常磁性共鳴, unpaired electron, 不対電子, hyperfine constant, 超微細構造定数, spin soliton, スピンソリトン | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
Kuroda, Noritaka
× Kuroda, Noritaka× Ito, Motoki× 仁科, 雄一郎× Kawamori, Asako× Kodera, Yoshio× Matsukawa, Takaya |
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別言語の著者 |
黒田, 規敬
× 黒田, 規敬× 伊藤, 幹× 仁科, 雄一郎× 河盛, 阿佐子× 小寺, 義男× 松川, 隆哉 |
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内容記述 | ||||||
内容記述 | The K-band electron paramagnetic resonance due to the photoinduced midgap state has been measured in an M-X chain complex [Pt(en)2 ][Pt(en)2Cl2](ClO4)4,(en)=ethylenediamine, at 77 K. The angular variations of the spectral line shape and the intensity show that the photoinduced unpaired electron is localized on the segment Pt-Cl-Pt of the M-X chain bonds. The pσ orbit of the intervening Cl- ion is found to share 30–40 % of the density of the unpaired electron, based on the following hyperfine constants of the constituent 195Pt and 35,37Cl nuclei: A∥Pt=378×10-4 cm-1 and A∥Cl=55×10-4 cm-1 for the quantization direction parallel to the chain axis; A⊥Pt=375×10-4 cm-1 and A⊥Cl<5×10-4 cm-1 for the direction perpendicular to the chain axis. The present result supports the notion that the photoinduced state is the spin soliton of two-site-type propagating along the M-X chain bonds. The possibility of the polaron is clearly excluded. | |||||
内容記述 | ||||||
内容記述 | M-X鎖錯体[Pt(en)2][Pt(en)2Cl2](ClO4)4に光誘起されるミッドギャップ状態の不対電子の分布形態を、Kバンドのマイクロ波を用いた電子常磁性共鳴で観察調査した。磁場方位依存性の結果より、不対電子はPt-Cl-Ptの部分に局在していることが明らかとなった。195Pt核と35,37Cl核の超微細構造定数の実験値より、不対電子は2個の195Pt核のd-軌道と1個の35,37Cl核のp-軌道の上にほぼ均等に分布していることが示される。これにより、光誘起ミッドギャップ状態がスピンソリトンであることが明確となった。 | |||||
書誌情報 |
Physical Review B 巻 48, 号 7, p. 4245-4249, 発行年 1993-08-15 |
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ISSN | ||||||
収録物識別子 | 01631829 | |||||
書誌レコードID | ||||||
収録物識別子 | AA00362255 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
関連識別子 | 10.1103/PhysRevB.48.4245 | |||||
権利 | ||||||
権利情報 | ©1993 The American Physical Society | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
580720 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
日本十進分類法 | ||||||
主題 | 428 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | M-X鎖錯体[Pt(en)2][Pt(en)2Cl2](ClO4)4における光誘起ミッドギャップ状態のKバンド電子常磁性共鳴 | |||||
タイトル(ヨミ) | ||||||
その他のタイトル | M-Xサ サクタイ [Pt(en)2] [Pt(en)2Cl2] (ClO4)4 ニ オケル ヒカリ ユウキ ミッドギャップ ジョウタイ ノ Kバンド デンシ ジョウジセイ キョウメイ | |||||
出版者 | ||||||
出版者 | The American Physical Society | |||||
資源タイプ | ||||||
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 | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | http://link.aps.org/abstract/PRB/v48/p4245 | |||||
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 |