THEORY OF THE DEPINNING TRANSITION IN CHARGE-DENSITY WAVES

被引：30

作者：

PARISI, G ^{[1
]}

PIETRONERO, L ^{[1
]}

机构：

[1] UNIV ROME LA SAPIENZA,DIPARTMENTO FIS,I-00185 ROME,ITALY

来源：

EUROPHYSICS LETTERS | 1991年 / 16卷 / 04期

关键词：

D O I：

10.1209/0295-5075/16/4/001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The depinning transition of a charge density wave pinned by random impurities gives rise to a dynamical critical behaviour of new type with properties analogous to those of glassy systems. In order to discuss these properties, it is convenient to introduce a coarse-grained model that should belong to the same class of universality of the usual models. This allows to derive analytical results for the critical exponents and for the stretched exponential relaxation below threshold. These results are in excellent agreement with computer simulations and elucidate the nature of this dynamical phase transition and of the glassy-type relaxation in the pinned region.

引用

页码：321 / 326

页数：6

共 50 条

[1] STATIC PROPERTIES OF CHARGE-DENSITY WAVES AT THE DEPINNING TRANSITION
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