k-space origin of the long-period oscillation in Fe/Cr multilayers: A photoemission study of epitaxial Cr grown on an Fe(100) whisker

被引：41

作者：

Li, DQ

Pearson, J

Bader, SD

Vescovo, E

Huang, DJ

Johnson, PD

Heinrich, B

机构：

[1] BROOKHAVEN NATL LAB,NATL SYNCHROTRON LIGHT SOURCE DEPT,UPTON,NY 11973

[2] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

[3] SIMON FRASER UNIV,DEPT PHYS,BURNABY,BC V5A 1S6,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.78.1154

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The k-space origin of the long-period (18 Angstrom) oscillation in the interlayer magnetic coupling of Fe/Cr(100) multilayers is investigated by means of angle-resolved photoemission by probing quantum well (QW) states at the Fermi energy for epitaxial Cr grown on an Fe(100) whisker at 300 degrees C. The periodicity of the intensity oscillations of the Cr QW states in the vicinity of the d-derived ''lens'' feature of the Fermi surface is 17+/-2 Angstrom. Thus the lens is identified as a prime candidate for the origin of the long period.

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收藏

页码：1154 / 1157

页数：4

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