AC-driven jump distributions on a periodic substrate

被引：18

作者：

Borromeo, M

Marchesoni, F ^{[1
]}

机构：

[1] Univ Camerino, Ist Nazl Fis Mat, I-62032 Camerino, Italy

[2] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

[3] Univ Perugia, Ist Nazl Fis Nucl, I-06123 Perugia, Italy

来源：

SURFACE SCIENCE | 2000年 / 465卷 / 03期

关键词：

diffusion and migration; equilibrium thermodynamics and statistical mechanics; friction; surface diffusion;

D O I：

10.1016/S0039-6028(00)00780-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A driven Brownian particle (e.g. an adatom on a surface) diffusing on a low-viscosity, periodic substrate may execute multiple jumps. In the presence of an additional periodic drive, the jump lengths and time durations become statistically modulated according to a synchronization mechanism reminiscent of asymmetric stochastic resonance. Here, too, bistability plays a key role, but in a dynamical sense, inasmuch as the particle switches between locked and running states. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：L771 / L776

页数：6

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