Eur. Phys. J. B 45, 169-173 (2005)
https://doi.org/10.1140/epjb/e2005-00176-5

Anisotropic pinned/biased magnetization in SrRuO₃/SrMnO₃ superlattices

Laboratoire CRISMAT, CNRS UMR 6508, ENSICAEN, 6 boulevard du Maréchal Juin, 14050 Caen Cedex, France

Corresponding author: ^a prellier@ensicaen.fr

Received: 17 September 2004
Revised: 2 November 2004
Published online: 28 June 2005

Abstract

The exchange coupling at the interfaces of magnetic superlattices consisting of ferromagnetic SrRuO₃ and antiferromagnetic SrMnO₃ grown on (001) oriented SrTiO₃ is studied with in-plane and out-of-plane orientations of the cooling magnetic field, with respect to the substrate plane. The magnetization of the in-plane, field cooled hysteresis loop is lower than the corresponding in-plane zero-field-cooled hysteresis loop. The out-of-plane field cooled hysteresis loop is shifted, from the origin, along the graphical magnetization axis. We attribute this irreversible rotation of the moment to the pinning/biasing of spin in the SrRuO₃ layer in the vicinity of interfaces by the antiferromagnetic SrMnO₃ layer.