K-SPACE ORIGIN OF THE LONG-PERIOD OSCILLATION IN FE CR MULTILAYERS - A PHOTOEMISSION-STUDY OF EPITAXIAL CR GROWN ON AN FE(100) WHISKER/

Authors
LI DQ PEARSON J BADER SD VESCOVO E HUANG DJ JOHNSON PD HEINRICH B
Citation
Dq. Li et al., K-SPACE ORIGIN OF THE LONG-PERIOD OSCILLATION IN FE CR MULTILAYERS - A PHOTOEMISSION-STUDY OF EPITAXIAL CR GROWN ON AN FE(100) WHISKER/, Physical review letters, 78(6), 1997, pp. 1154-1157
Citations number
22
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
6
Year of publication
1997
Pages
1154 - 1157
Database
ISI
SICI code
0031-9007(1997)78:6<1154:KOOTLO>2.0.ZU;2-G
Abstract
The k-space origin of the long-period (18 Angstrom) oscillation in the interlayer magnetic coupling of Fe/Cr(100) multilayers is investigate d by means of angle-resolved photoemission by probing quantum well (QW ) states at the Fermi energy for epitaxial Cr grown on an Fe(100) whis ker 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.