1/f noise in a one-dimensional charge density wave system

被引：1
|
作者：
Struzik, ZR
Glatz, A
Li, MS
机构：
[1] Univ Tokyo, Grad Sch Educ, Educ Physiol Lab, Bunkyo Ku, Tokyo 1130033, Japan
[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan
[3] Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany
[4] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
来源：
EUROPHYSICS LETTERS | 2004年 / 66卷 / 03期
关键词：
D O I：
10.1209/epl/i2003-10217-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The current noise in a classical one-dimensional charge density wave system is studied in the weak pinning regime by solving the overdamped equation of motion numerically. At low temperatures and just above the zero-temperature depinning threshold, the power spectrum of the current noise S(f) was found to scale with frequency f as S(f) similar to f(-gamma), where gamma approximate to 1, suggesting the existence of flicker noise. Our result is in agreement with experimental findings for quasi-one-dimensional charge density wave systems and provides the first evidence of 1/f behavior obtained from first principles.
引用
收藏
页码：385 / 391
页数：7
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