DOMAIN-WALLS IN ULTRATHIN FERROMAGNETIC-FILMS - VELOCITY AND FRACTAL DIMENSION

被引：42

作者：

KIRILYUK, A

FERRE, J

RENARD, D

机构：

[1] UNIV PARIS 11,CNRS,PHYS SOLIDES LAB,F-91405 ORSAY,FRANCE

[2] UNIV PARIS 11,CNRS,INST OPT THEOR & APPL,F-91405 ORSAY,FRANCE

来源：

EUROPHYSICS LETTERS | 1993年 / 24卷 / 05期

关键词：

D O I：

10.1209/0295-5075/24/5/014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the first measurements of the domain wall (DW) velocity at magnetization reversal as a function of the applied magnetic field in ultrathin ferromagnetic Au/Co/Au films with perpendicular anisotropy. The Barkhausen volumes as well as Gilbert damping parameters are derived. The limit of the DW velocity is reached in high field. The change in fractal dimension of the domain wall with field is correlated to the crossover between thermally activated and viscous processes driving the wall motion.

引用

收藏

页码：403 / 408

页数：6

相关论文

共 23 条

[1] MAGNETIC DOMAINS IN THIN EPITAXIAL CO/AU(111) FILMS [J].

ALLENSPACH, R ;

STAMPANONI, M ;

BISCHOF, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (26) :3344-3347

[2] AVALANCHES AND SELF-ORGANIZATION IN CELLULAR MAGNETIC-DOMAIN PATTERNS [J].

BABCOCK, KL ;

WESTERVELT, RM .

PHYSICAL REVIEW LETTERS, 1990, 64 (18) :2168-2171

[3] MAGNETIC AFTEREFFECT IN ULTRATHIN FERROMAGNETIC-FILMS [J].

BAYREUTHER, G ;

BRUNO, P ;

LUGERT, G ;

TURTUR, C .

PHYSICAL REVIEW B, 1989, 40 (10) :7399-7402

[4] CHARACTERIZATION OF MAGNETOOPTICAL RECORDING MEDIA IN TERMS OF DOMAIN BOUNDARY JAGGEDNESS [J].

BERNACKI, BE ;

MANSURIPUR, M .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) :4960-4962

[5] FERROMAGNETIC-RESONANCE STUDIES OF VERY THIN COBALT FILMS ON A GOLD SUBSTRATE [J].

CHAPPERT, C ;

LEDANG, K ;

BEAUVILLAIN, P ;

HURDEQUINT, H ;

RENARD, D .

PHYSICAL REVIEW B, 1986, 34 (05) :3192-3197

[6] EMPIRICAL RELATION FOR SATURATION VELOCITY IN BUBBLE-DOMAIN GARNET MATERIALS [J].

DELEEUW, FH .

IEEE TRANSACTIONS ON MAGNETICS, 1978, 14 (05) :596-598

[7]

DILLON JF, 1963, MAGNETISM, V3, P450

[8] UBER DIE TRAGHEIT DER WANDE ZWISCHEN WEISSSCHEN BEZIRKEN [J].

DORING, W .

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1948, 3 (07) :373-379

[9] MAGNETOOPTICAL RECORDING IN CO/PT MULTILAYERS [J].

GREIDANUS, FJAM ;

ZEPER, WB ;

JACOBS, BAJ ;

SPRUIT, JHM ;

CARCIA, PF .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1989, 28 :37-44

[10] DOMAIN-WALL DYNAMICS IN ULTRATHIN AU/CO/AU FILMS [J].

KIRILYUK, A ;

FERRE, J ;

POMMIER, J ;

RENARD, D .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 121 (1-3) :536-538