MAGNETIC DOMAIN-STRUCTURE IN ULTRATHIN FILMS

被引：119

作者：

BOCHI, G ^{[1
]}

HUG, HJ ^{[1
]}

PAUL, DI ^{[1
]}

STIEFEL, B ^{[1
]}

MOSER, A ^{[1
]}

PARASHIKOV, I ^{[1
]}

GUNTHERODT, HJ ^{[1
]}

OHANDLEY, RC ^{[1
]}

机构：

[1] UNIV BASEL,INST PHYS,BASEL,SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.75.1839

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first magnetic force microscope (MFM) images of a series of epitaxial magnetic thin films is presented. The films studied, Ni/Cu/Si(001) capped by 2 nm of Cu, exhibit perpendicular magnetization over an exceptionally broad Ni thickness range 2 < h < 14 nm. The Ni domain structure shows a sharp transition to a finer length scale above a finite critical thickness of order 9 nm. The average force measured by the MFM tip reflects this refinement in domain structure. Micromagnetic theory, combined with our measurements of K-eff(h), provides the first quantitative description for these general but previously unexplained phenomena.

引用

页码：1839 / 1842

页数：4

共 27 条

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