New possibilities for tuning ultrathin cobalt film magnetic properties by a noble metal overlayer

被引：91

作者：

Kisielewski, M

Maziewski, A

Tekielak, M

Wawro, A

Baczewski, LT

机构：

[1] Univ Bialystok, Inst Expt Phys, PL-15424 Bialystok, Poland

[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.89.087203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Complementary multiscale magneto-optical studies based on the polar Kerr effect are carried out on an ultrathin cobalt wedge covered with a silver wedge and subsequently with the Au thick layer. A few monolayers of Ag are found to have a substantial effect on magnetic anisotropy, the coercivity field, and Kerr rotation. The silver overlayer thickness-driven magnetic reorientation from easy axis to easy plane generates a new type of 90degrees magnetic wall for cobalt thicknesses between 1.3 and 1.8 nm. The tuning of the wall width in a wide range is possible. Tailoring of the overlayer structure can be used for ultrathin film magnetic patterning.

引用

页码：087203/1 / 087203/4

页数：4

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