SCALING OF CRITICAL SELF-ORGANIZED MAGNETIC-DOMAIN FORMATIONS

被引:5
作者
CHE, XD
SUHL, H
机构
[1] Department of Physics, University of California, San Diego, San Diego
来源
PHYSICAL REVIEW B | 1991年 / 44卷 / 01期
关键词
D O I
10.1103/PhysRevB.44.155
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report a numerical investigation of scaling laws obeyed by the response of a domain wall separating regions of opposite magnetization in a recording tape. The universality of the t-1.1 power law for the resettlement time of the pattern following a disturbance breaks down for large t. The scaling law for large t depends on anisotropy (i.e., inclination of the wall to the tape direction) and tape length. For infinite tape length, the remaining dependence of the power law on anisotropy is best fitted by Widom scaling. We also find that a critical self-organized state is attained whether or not successive steps of the algorithm involve random elements, as long as the initial state is random.
引用
收藏
页码:155 / 158
页数:4
相关论文
共 14 条
[1]   ZIGZAG TRANSITION PROFILES, NOISE, AND CORRELATION STATISTICS IN HIGHLY ORIENTED LONGITUDINAL FILM MEDIA [J].
ARNOLDUSSEN, TC ;
TONG, HC .
IEEE TRANSACTIONS ON MAGNETICS, 1986, 22 (05) :889-891
[2]   AVALANCHES AND SELF-ORGANIZATION IN CELLULAR MAGNETIC-DOMAIN PATTERNS [J].
BABCOCK, KL ;
WESTERVELT, RM .
PHYSICAL REVIEW LETTERS, 1990, 64 (18) :2168-2171
[3]   SELF-ORGANIZED CRITICALITY [J].
BAK, P ;
TANG, C ;
WIESENFELD, K .
PHYSICAL REVIEW A, 1988, 38 (01) :364-374
[4]   SELF-ORGANIZED CRITICALITY - AN EXPLANATION OF 1/F NOISE [J].
BAK, P ;
TANG, C ;
WIESENFELD, K .
PHYSICAL REVIEW LETTERS, 1987, 59 (04) :381-384
[5]   MAGNETIC DOMAIN PATTERNS AS SELF-ORGANIZING CRITICAL SYSTEMS [J].
CHE, XD ;
SUHL, H .
PHYSICAL REVIEW LETTERS, 1990, 64 (14) :1670-1673
[6]   ANALYSIS OF CORRELATION OF MAGNETIZATION AND NOISE AFTER AC ERASING [J].
CHE, XD ;
SUHL, H .
JOURNAL OF APPLIED PHYSICS, 1991, 69 (04) :2440-2443
[7]   DISSIPATIVE TRANSPORT IN OPEN SYSTEMS - AN INVESTIGATION OF SELF-ORGANIZED CRITICALITY [J].
HWA, T ;
KARDAR, M .
PHYSICAL REVIEW LETTERS, 1989, 62 (16) :1813-1816
[8]  
KADANOFF L, 1989, PHYS REV A, V39, P9524
[9]  
KATZ A, 1967, PRINCIPLES STATISTIC
[10]  
NAKANISHI H, UNPUB