Hump like resistance anomaly in organic conductor β''-(BEDT-TTF)2CsCd(SCN)4
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- Kondo Ryusuke
- Department of Basic Science, University of Tokyo
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- Otsuji Jun
- Department of Basic Science, University of Tokyo
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- Kagoshima Seiichi
- Department of Basic Science, University of Tokyo
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- Nogami Yoshio
- Department of Physics, Okayama University
書誌事項
- タイトル別名
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- Hump Like Resistance Anomaly in Organic Conductor β″-(BEDT-TTF)<SUB>2</SUB>CsCd(SCN)<SUB>4</SUB>
- Hump like resistance anomaly in organic conductor v BEDT TTF 2CsCd SCN 4
- Hump Like Resistance Anomaly in Organic Conductor β''-(BEDT-TTF)<sub>2</sub>CsCd(SCN)<sub>4</sub>
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抄録
We investigate the low-temperature electronic phase of a two-dimensional organic conductor, β″-(BEDT-TTF)2CsCd(SCN)4 [where BEDT-TTF denotes bis(ethylenedithio)tetrathiafulvalene], which has a large hump between 32 and around 5 K in the temperature dependence of the interlayer resistance. We present experimental results for the temperature dependence of the resistance under magnetic fields and its Kohler plots, and an x-ray diffraction study. We find that I) Kohler’s rule is strongly violated below 32 K, although the rule is valid above 32 K, and II) weak superlattice spots appear at 15.6 K in the x-ray study. On the basis of the experimental results, we suggest that the origin of the resistance hump is the formation of a possible charge density wave transition at about 32 K by the nesting of a pair of large one-dimensional Fermi surfaces obtained in the electronic structure calculation based on the crystal structure at room temperature.
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 77 (6), 063702-063702, 2008
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
- 1390001204197888512
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- NII論文ID
- 130005436437
- 110006781565
- 210000107254
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2008JPSJ...77f3702K
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 9533969
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可