Conductivity and magnetoresistance in polypyrrole-PF6 at various doping levels

被引：6

作者：

Sutar, D ^{[1
]}

Mithra, M ^{[1
]}

Menon, R ^{[1
]}

Subramanyam, SV ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

来源：

SYNTHETIC METALS | 2001年 / 119卷 / 1-3期

关键词：

polypyrrole; transport measurement; magnetotransport; metal-insulator transition;

D O I：

10.1016/S0379-6779(00)00668-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature dependence of de conductivity (from 1.5 to 300 K), and magnetoresistance (up to 7T) have been studied on polypyrrole samples doped with PF6-(PPy - PF6) at various doping levels. In this work, the metal-insulator transition (MIT) is tuned by varying the carrier density, and not by the extent of disorder. The conductivity data is analysed using different models. The positive magnetoresistance observed for all the samples shows that electron-electron interaction is dominant.

引用

页码：455 / 456

页数：2