MAGNETIC AND STRUCTURAL-PROPERTIES OF CO/PT MULTILAYERS

被引：276

作者：

LIN, CJ ^{[1
]}

GORMAN, GL ^{[1
]}

LEE, CH ^{[1
]}

FARROW, RFC ^{[1
]}

MARINERO, EE ^{[1
]}

DO, HV ^{[1
]}

NOTARYS, H ^{[1
]}

CHIEN, CJ ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT MAT SCI & ENGN,STANFORD,CA 94305

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1991年 / 93卷

关键词：

D O I：

10.1016/0304-8853(91)90329-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of Co/Pt multilayers, in particular anisotropy and coercivity, are very sensitive to the Co layer thickness and less dependent on the Pt layer thickness. Such dependence is illustrated and discussed for e-beam evaporated Co/Pt multilayers of various Co and Pt thicknesses. It is shown that the largest perpendicular anisotropy occurs for Co layer thickness of 1-2 monolayers. The magnetic anisotropy of Co/Pt multilayers also strongly depends on the crystallographic orientation. The largest perpendicular magnetic anisotropy was obtained for Co/Pt multilayers with Pt(111) parallel to the film plane. This was demonstrated in both evaporated and sputtered polycrystalline multilayers, as well as in molecular beam epitaxy (MBE) grown Co/Pt(111) superlattices. By contrast, MBE grown 3.7 angstrom Co/16.8 angstrom Pt(100) multilayers show in-plane anisotropy, and 3.7 angstrom Co/16.8 angstrom Pt(110) multilayers exhibit very strong anisotropy within the film plane. These observations suggest that the magneto-crystalline anisotropy plays a key role in the magnetic anisotropy of these structures. Significantly enhanced effective magnetization was observed for Co/Pt multilayers with ultrathin Co layer.

引用

页码：194 / 206

页数：13

共 23 条

[1]

Araki S., 1989, J MAGN SOC JPN, V13, P339

[2] PERPENDICULAR MAGNETIC-ANISOTROPY IN PD/CO AND PT/CO THIN-FILM LAYERED STRUCTURES [J].