Magnetic reversal of perpendicularly-biased Co/Pt multilayers

被引：77

作者：

Hellwig, O

Maat, S

Kortright, JB

Fullerton, EE

机构：

[1] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.65.144418

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the magnetic reversal behavior of [(Co/Pt)(4)Co/CoO](N) multilayers that are exchange biased perpendicular to the film plane. We find clear differences in the nucleation properties of the reverse domains of the ascending and descending branches of the hysteresis loops. However, the evolution of the reverse domains, once nucleated, is symmetric to positive and negative field sweeps. This behavior is in contrast to many in-plane biased experiments and can be understood from the collinear uniaxial magnetic anisotropy and unidirectional exchange-bias axis.

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页码：1 / 4

页数：4

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