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Anisotropic pinned/biased magnetization in SrRuO/SrMnO superlattices

European Physical Journal B, ISSN: 1434-6028, Vol: 45, Issue: 2, Page: 169-173
2005
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Article Description

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. © EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005.

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