期刊
SYNTHETIC METALS
卷 120, 期 1-3, 页码 1081-1082出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0379-6779(00)00683-4
关键词
nuclear magnetic resonance spectroscopy; metal-insulator phase transitions; organic conductors based on radical cation and/or anion salts
C-13-NMR measurements were performed to the quasi two-dimensional organic conductor alpha-(BEDT-TTF)(2)I-3, which exhibits metal-insulator transition at 135 K (= T-MI) at ambient pressure. The relaxation rate T-1(-1) has two components below T-MI. indicating two nonequivalent sites. T-dependence of the lineshape clearly indicates that there exist two differently charged BEDT-TTF molecules below T-MI.
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