title: Oscillatory exchange coupling and positive magnetoresistance in epitaxial oxide heterostructures
abstract: Oscillation in the exchange coupling between ferromagnetic La(2/3)Ba(1/3)MnO3 layers with paramagnetic LaNiO3 spacer layer thickness has been observed in epitaxial heterostructures of the two oxides. This behavior is explained within the RKKY model employing an ab initio calculated band structure of LaNiO3, taking into account strong electron scattering in the spacer. Antiferromagnetically coupled superlattices exhibit a positive current-in-plane magnetoresistance.
authors.affiliation: School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA.
authors.initials: KR
authors.lastname: Nikolaev
authors.initials: AY
authors.lastname: Dobin
authors.initials: IN
authors.lastname: Krivorotov
authors.initials: WK
authors.lastname: Cooley
authors.initials: A
authors.lastname: Bhattacharya
authors.initials: AL
authors.lastname: Kobrinskii
authors.initials: LI
authors.lastname: Glazman
authors.initials: RM
authors.lastname: Wentzovitch
authors.initials: ED
authors.lastname: Dahlberg
authors.initials: AM
authors.lastname: Goldman