ELECTRICAL AND OPTICAL-PROPERTIES OF ALPHA-(BETS)(2)I-3 AND ALPHA-(BEDT-STF)(2)I-3
ELECTRICAL AND OPTICAL-PROPERTIES OF ALPHA-(BETS)(2)I-3 AND ALPHA-(BEDT-STF)(2)I-3
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DOI：
10.1246/bcsj.68.547
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发表时间：
1995-02-01
影响因子：
4
通讯作者：
KOBAYASHI, H
中科院分区：
文献类型：
--
作者：
INOKUCHI, M;TAJIMA, H;KOBAYASHI, H
研究了与α-（BEDT-TTF）（2）I-3同构的α-（BETS）（2）I-3和α-（BEDT-STF）（2）I-3的电学和光学性质。已经表明，α-（BETS）（2）I-3和α-（BEDT-STF）（2）I-3分别在约50和80 K下经历金属-绝缘体转变，并且它们的电导率表现出与高压下的α-（BEDT-TTF）（2）I-3相似的温度依赖性。这些盐的光学反射光谱显示其电子结构的二维性质，并且光谱数据的分析显示横向分子间相互作用以α-（BEDT-TTF）（2）I-3 <α-（BEDT-STF）（2）I-3 <α-（BETS）（2）I-3的顺序增加。
The electrical and optical properties were studied concerning alpha-(BETS)(2)I-3 and alpha-(BEDT-STF)(2)I-3, which are isostructural to alpha-(BEDT-TTF)(2)I-3. It has been shown that alpha-(BETS)(2)I-3 and alpha-(BEDT-STF)(2)I-3 undergo metal-insulator transitions at around 50 and 80 K, respectively, and that their electrical resistivities exhibit temperature dependences resembling that of alpha-(BEDT-TTF)(2)I-3 under high pressure. The optical reflectance spectra of these salts show a two-dimensional nature of their electronic structures, and analyses of the spectral data show that the transverse inter-molecular interaction increases in the order alpha-(BEDT-TTF)(2)I-3 < alpha-(BEDT-STF)(2)I-3 < alpha-(BETS)(2)I-3.