Competing Exchange Interactions in Magnetic Multilayers
2006 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 96, 057205- p.Article in journal (Refereed) Published
We have studied alloying of the nonmagnetic spacer layer with a magnetic material as a method of tuning the interlayer coupling in magnetic multilayers. We have specifically studied the Fe/V(100) system by alloying the spacer V with various amounts of Fe. For some Fe concentrations in the spacer, it is possible to create a competition between antiferromagnetic Ruderman-Kittel-Kasuya-Yoshida exchange and direct ferromagnetic exchange coupling. The exchange coupling and transport properties for a large span of systems with different spacer concentrations and thicknesses were calculated and measured experimentally and good agreement between observations and theory was observed. A reduction in magnetoresistance of about 50% was observed close to the switchover from antiferromagnetic to ferromagnetic coupling.
Place, publisher, year, edition, pages
2006. Vol. 96, 057205- p.
Physical Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-96086DOI: 10.1103/PhysRevLett.96.057205OAI: oai:DiVA.org:uu-96086DiVA: diva2:170548