METALLIC TEMPERATURE-DEPENDENCE IN THE CONDUCTING POLYMER, POLYANILINE - SPIN DYNAMICS STUDY BY ESR

被引：39

作者：

MIZOGUCHI, K

KUME, K

机构：

[1] Department of Physics, Tokyo Metropolitan University, Tokyo, 192-03, Minami-Osawa, Hachi-O-i

来源：

SOLID STATE COMMUNICATIONS | 1994年 / 89卷 / 12期

关键词：

D O I：

10.1016/0038-1098(94)90497-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Microscopic spin and charge dynamics in polyaniline (PANI) are studied by ESR. Temperature dependence of the diffusion rates along a polymer chain D(parallel-to) and across chains D(perpendicular-to) was determined for the emeraldine salt form with HCI. The main results are (a) D(parallel-to) above 150 K follows metallic temperature dependence of T(-d) with d=2-3, (b) an abrupt change in D(parallel-to) is found around 150 K, and (c) the anisotropy ratio D(parallel-to)/D(perpendicular-to) is larger than nearly 10(5) around 150 K. These results lead us PANI being the highly one dimensional electronic system.

引用

页码：971 / 975

页数：5

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