Symmetry-induced magnetic anisotropy in Fe films grown on stepped Ag(001)

被引：207

作者：

Kawakami, RK ^{[1
]}

EscorciaAparicio, EJ ^{[1
]}

Qiu, ZQ ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY NATL LAB,DIV MAT SCI,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.77.2570

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Symmetry breaking at atomic steps of ultrathin Fe films grown on stepped Ag(001) substrates creates a uniaxial magnetic anisotropy with the easy axis parallel to the step edges. The relation between this induced anisotropy and the step density is systematically investigated by magneto-optically scanning films grown on a curved substrate with a vicinal angle range between 0 degrees and 10 degrees. We find that (a) the uniaxial anisotropy depends quadratically on thr step density, and (b) the spin-reorientation transition occurs at a larger thickness for the stepped than for the hat film.

引用

页码：2570 / 2573

页数：4

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