Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-09-27
J. Appl. Phys. 98 (2005) 083906
Physics
Condensed Matter
Strongly Correlated Electrons
To be published in Journal of Applied Physics
Scientific paper
We have observed the pinned/biased moments in the superlattices consisting of ferromagnetic (FM) SrRuO3 (SRO) and antiferromagnetic (AFM) SrMnO3 (SMO)bilayer. The alternate stacking of SRO and SMO leading to a low field positive magnetoresistance with enhanced hysteretic field dependent magnetoresistance under the application of the out-of-plane magnetic field. We attribute these effects to the observed biased/pinned magnetic moments in the SRO layer in the vicinity of the interfaces. In addition, the biased/pinned moments can be oriented under the application of either the out-of-plane magnetic field or a combination of out-of-plane magnetic field and in-plane electric field. These results will bring new insights in the understanding of the coupling at the AFM/FM interface which can be useful for creating new exotic phenomena at the interfaces of the multilayer.
Padhan Prahallad
Prellier Wilfrid
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