NON-LINEAR TRANSPORT IN QN(TCNQ)2

被引：22

作者：

MIHALY, G

JANOSSY, A

KURTI, J

FORRO, L

GRUNER, G

机构：

[1] Central Research Institute for Physics, Budapest

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 94卷 / 01期

关键词：

D O I：

10.1002/pssb.2220940133

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A nonlinear electric field dependence is found in the quasi‐one‐dimensional organic conductor Qn(TCNQ)2. The non‐Ohmic behaviour sets in at electric fields as low as 2 V/cm and it is observed to temperatures above 100 K. Results obtained on a series of crystals with different lengths show that in defect‐free crystals the nonlinearity is intrinsic. Microscopic breaks enhance while chemical impurities depress the nonlinearities. The observations are in contradiction with a simple band semiconductor model and also with models where transport properties are assumed to be determined by short localization lengths. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

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收藏

页码：287 / 296

页数：10

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