Metallic conductivity in a disordered charge-transfer salt derived from cis-BET-TTF

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• 作者：Rovira ; C. ; Tarré ; s ; J. ; Ribera ; E. ; Veciana ; J. ; Canadell ; E. ; Molins ; E. ; Mas ; M. ; Laukhin ; V. ; et. al.
• 关键词：Organic superconductors ; Electron spin resonance ; X-ray diffraction ; Conductivity ; Electronic band structures
• 刊名：Synthetic Metals
• 出版年：1997
• 出版时间：February 28, 1997
• 年：1997
• 卷：86
• 期：1-3
• 页码：2145-2146
• 全文大小：171 K

文摘

The first example of a metallic charge-transfer salt derived from cis-bis(ethylenethio)-tetrathiafulvalene (BET-TTF) is reported. (BET-TTF)₂SCN salts were obtained by electrocrystallization starting from trans-BET-TTF. X-ray crystal structure of the mixed-valence salt revealed that trans-cis isomerization occurs upon one electron oxidation. In spite of the structural disorder in both BET-TTF and the counterion, 2:1 salt is metallic down to 60 K and then resistance increases slowly down to 4 K.