CONTROLLED PHASE-SHIFTS IN INTERLAYER MAGNETIC COUPLING WITH THE DOPING OF THE MAGNETIC LAYER

Authors
OUNADJELA K ZHOU L WIGEN P STAMPS R GREGG J
Citation
K. Ounadjela et al., CONTROLLED PHASE-SHIFTS IN INTERLAYER MAGNETIC COUPLING WITH THE DOPING OF THE MAGNETIC LAYER, Europhysics letters, 39(2), 1997, pp. 213-218
Citations number
19
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
39
Issue
2
Year of publication
1997
Pages
213 - 218
Database
ISI
SICI code
0295-5075(1997)39:2<213:CPIIMC>2.0.ZU;2-O
Abstract
We report the first observation of a strong change in the phase (up to 360 degrees) of the interlayer magnetic exchange coupling in Co/Ru/Co and Co/Cu/Co trilayer system which is controlled by the addition of s mall amounts of Ag (up to 8%) to the Co layers. The phase shifts may b e due to modifications of magnetic-film spin-dependent potentials whic h control conduction electron contributions to the interlayer coupling . In addition, a strong additive antiparallel bias to the interlayer m agnetic exchange coupling in Co/Ru/Co trilayers is observed, indicatin g a possible additive superexchange interaction.