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Observation of Two Different Oscillation Periods in the Exchange Coupling of Fe/Cr/Fe(100)

Published

Author(s)

John Unguris, Robert Celotta, Daniel T. Pierce

Abstract

Oscillations of ferromagnetic to antiferromagnetic exchange coupling between two Fe layers separated by a Cr spacer of linearly increasing thickness were investigated by imaging the magnetic domains with scanning electron microscopy with polarization analysis. Up to six oscillations in the coupling with a period of 10-12 Cr layers were observed, and, in the case of an extremely well ordered Cr interlayer, additional oscillations with a period of 2 Cr layers were observed.
Citation
Physical Review Letters
Volume
67
Issue
1
Created January 1, 1991, Updated February 19, 2017