title: Magnetic superlattices with variable interlayer exchange coupling: a new approach for the investigation of low-dimensional magnetism.
abstract: We have investigated the magnetic order in an [Fe(2)/(VHx)(13)] x 200 superlattice as a function of temperature and hydrogen content in the vanadium layers. A J(radially)-T magnetic phase diagram was established where J(radially) denotes the interlayer exchange coupling between adjacent Fe planes. We propose that Fe/V superlattices, in which the ratio of interlayer to intralayer coupling can be tuned continuously and reversibly via hydrogen in the nonmagnetic vanadium, offer a new approach for the study of low-dimensional magnetism and crossover effects near the transition from ferromagnetic to antiferromagnetic order.
authors.affiliation: Institut für Experimentalphysik/Festkörperphysik, Ruhr-Universität Bochum, D-44780 Bochum, Germany. vincent.leiner@simeonics.com
authors.forename: V
authors.initials: V
authors.lastname: Leiner
authors.forename: K
authors.initials: K
authors.lastname: Westerholt
authors.forename: A M
authors.initials: AM
authors.lastname: Blixt
authors.forename: H
authors.initials: H
authors.lastname: Zabel
authors.forename: B
authors.initials: B
authors.lastname: Hjörvarsson