13C-NMR study of charge ordering state in the organic conductor, α-(BEDT-TTF)2I3
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- Kawai Takuma
- Department of Quantum and Condensed Matter Physics, Graduate School of Science, Hokkaido University
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- Kawamoto Atsushi
- Department of Quantum and Condensed Matter Physics, Graduate School of Science, Hokkaido University
書誌事項
- タイトル別名
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- <SUP>13</SUP>C-NMR Study of Charge Ordering State in the Organic Conductor, α-(BEDT-TTF)<SUB>2</SUB>I<SUB>3</SUB>
- 13C NMR study of charge ordering state in the organic conductor a BEDT TTF 2I3
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説明
The pattern of charge ordering of the quasi two-dimensional organic conductor, α-(BEDT-TTF)2I3 [BEDT-TTF: bis(ethylenedithio)tetrathiafulevalene], provides important information about the usual transport properties of this salt. Experiments on this salt have yielded conflicting results. Especially, the results of nuclear magnetic resonance (NMR) measurement and X-ray Diffraction (XRD) study have suggested contradictory charge patterns. To clarify these discrepancies, we performed 13C-NMR measurements using a single side 13C enriched molecule. Above the metal–insulator transition temperature, the spin susceptibility at the B site decreased and that at the C site increased with decreasing temperature. Below the metal–insulator (M–I) transition temperature, however, the angular dependence of the NMR shift suggested that the charge order pattern was a horizontal stripe, in which the A(A′) and B molecules are charge rich sites and the A′(A) and C molecules are charge poor.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 78 (7), 074711-074711, 2009
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679173374592
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- NII論文ID
- 130005437499
- 10025962669
- 210000107889
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- NII書誌ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 10280815
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- en
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