POINCARE SECTIONS OF CHARGE-DENSITY-WAVE DYNAMICS - MODE-LOCKING

被引：13

作者：

LEVY, J ^{[1
]}

SHERWIN, MS ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,CTR NONLINEAR STUDY,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.67.2846

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter reports the first measurements of Poincare sections of charge-density-wave (CDW) dynamics. High-quality crystals of NbSe3 were excited by combined dc and ac currents. Mode-locked and -unlocked behavior are identified by Poincare sections consisting of points and closed curves, respectively. We analyze our results in terms of a dynamical phase transition. We argue that multiply degenerate attractors exist in subharmonic mode-locked phases. Dynamics of such phases are dominated by domain walls separating sections of the CDW with different attractors.

引用

页码：2846 / 2849

页数：4

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