Oscillatory interlayer magnetic coupling of sputtered Fe/Mo superlattices

Sputtered Fe/Mo superlattices grown on sapphire exhibit an oscillatory magnetic coupling as a function of Mo thickness. Ferromagnetic Fe layers 25 Å thick couple across the nonmagnetic Mo layers ferro- or antiferromagnetically with a period of ∼11 Å Mo. Ferromagnetically aligned films show the antic...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied physics letters 1991-05, Vol.58 (20), p.2306-2308
Hauptverfasser: BRUBAKER, M. E, MATTSON, J. E, SOWERS, C. H, BADER, S. D
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Sputtered Fe/Mo superlattices grown on sapphire exhibit an oscillatory magnetic coupling as a function of Mo thickness. Ferromagnetic Fe layers 25 Å thick couple across the nonmagnetic Mo layers ferro- or antiferromagnetically with a period of ∼11 Å Mo. Ferromagnetically aligned films show the anticipated trend in longitudinal Kerr-rotation values based on calculation, while the antiferromagnetically coupled films in zero field yield only weak Kerr signals due to their characteristically ‘‘pinched’’ hysteresis loops. The films are well ordered and exhibit up to seven low-angle, x-ray diffraction peaks, but have negative magnetoresistive anomalies that are only ≲2% at 4.2 K.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.104907