CROSSOVER IN LOW-TEMPERATURE COLLECTIVE SPIN-DENSITY-WAVE TRANSPORT

被引：53

作者：

MIHALY, G

KIM, Y

GRUNER, G

机构：

[1] HUNGARIAN ACAD SCI,CENT RES INST PHYS,H-1525 BUDAPEST,HUNGARY

[2] UNIV CALIF LOS ANGELES,CTR SOLID STATE SCI,LOS ANGELES,CA 90024

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.67.2713

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the nonlinear transport in the spin-density-wave (SDW) state of (TMTSF)2PF6. Besides the typical sliding SDW conduction, at temperatures close to T(SDW), we find a new type of collective electron transport below T congruent-to 1 K, with temperature-independent conductivity which follows a Zener-type expression. We discuss the relevant energy scales of the ground-state excitations, both for single-particle tunneling and for coherent SDW processes.

引用

页码：2713 / 2716

页数：4

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