COMPLETE MODE-LOCKING IN MODELS OF CHARGE-DENSITY WAVES

被引：58
作者：
MIDDLETON, AA
BIHAM, O
LITTLEWOOD, PB
SIBANI, P
机构：
[1] AT&T BELL LABS,MURRAY HILL,NJ 07974
[2] ODENSE UNIV,DEPT PHYS,DK-5230 ODENSE,DENMARK
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.68.1586
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Mode locking in ac-driven charge-density waves is studied numerically in two and three dimensions, using both continuous equations of motion and a cellular automaton model. As the system size is increased, a complete devil's staircase of steps is approached. The fractal dimension of the set of gaps in the staircase is found to be D0 = 0.75 +/- 0.04 (0.88 +/- 0.05) in two (three) dimensions in the automaton model. The spectrum of singularities f(alpha) is calculated and is related to the dynamic critical exponent-zeta for the char -density-wave depinning transition.
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收藏
页码：1586 / 1589
页数：4
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