NONLINEAR ELECTRIC TRANSPORT AND SWITCHING PHENOMENON IN METHYLTRIPHENYLARSONIUM-(TCNQ)2 UNDER PRESSURE

被引:2
作者
RAVINDRAN, T
SUBRAMANYAM, SV
机构
[1] Department of Physics, Indian Institute of Science, Bangalore
关键词
D O I
10.1016/0379-6779(92)90357-O
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Non-ohmic conduction and electrical switching have been observed in methyltriphenylarsonium-(TCNQ)2 at different pressures up to 8 GPa at a temperature of 300 K. Pulsed current-voltage characteristics reveal a heating contribution to non-ohmic conduction and switching. The switching time recorded is 0.5 ms. Pressure dependence of switching field follows the same functional form as that of resistivity versus pressure. Non-ohmic conduction is discussed in terms of space-charge-limited currents which lead to a structural phase transition at high fields approximately 3 X 10(3) V/cm to a highly conducting state with sigma(ON)/sigma(OFF) almost-equal-to 10(3).
引用
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页码:317 / 324
页数:8
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