SYSTEMATIC VARIATION OF THE STRENGTH AND OSCILLATION PERIOD OF INDIRECT MAGNETIC EXCHANGE COUPLING THROUGH THE 3D, 4D, AND 5D TRANSITION-METALS

被引：995

作者：

PARKIN, SSP

机构：

[1] IBM Research Division, Almaden Research Center, San Jose, CA 95120-6099

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.67.3598

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that oscillatory indirect magnetic exchange coupling via transition metals sandwiched between ferromagnetic layers of Fe, Co, Ni, or Ni alloys is a general phenomenon. Surprisingly, the oscillation period is approximately the same, congruent-to 10 angstrom, in all the transition metals in which we observe coupling with the single exception of Cr, for which it is much longer. Furthermore, the exchange-coupling strength is found to increase systematically from the 5d to 4d to 3d metals and exponentially with increasing number of d electrons along each period.

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页码：3598 / 3601

页数：4

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