Ferromagnetic Resonance in Superlattices Fe/Cr on MgO
- 1 December 1992
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 31 (12B) , L1754-1756
- https://doi.org/10.1143/jjap.31.l1754
Abstract
Measurements of ferromagnetic resonance (FMR), magnetization and magnetoresistance (Δρ/ρ) have been made for Fe(30 Å)/Cr(x) superlattices epitaxially deposited on MgO(001) substrates, to study the antiferromagnetic (AF) coupling between the adjacent Fe layers. For x=6-12 Å films, a large Δρ/ρ (>5%), high saturation field (H s) and two FMR peaks were observed. A model of strongly coupled AF magnetization explains the high H s; however, it cannot explain the observed low field values of the secondary FMR peak.Keywords
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