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Competing interactions in ferromagnetic/antiferromagnetic perovskite superlattices

Y. Takamura, F. Yang, N. Kemik, E. Arenholz, M. D. Biegalski, and H. M. Christen
Phys. Rev. B 80, 180417(R) – Published 19 November 2009

Abstract

Soft x-ray magnetic dichroism, magnetization, and magnetotransport measurements demonstrate that the competition between different magnetic interactions (exchange coupling, electronic reconstruction, and long-range interactions) in La0.7Sr0.3FeO3(LSFO)/La0.7Sr0.3MnO3(LSMO) perovskite oxide superlattices leads to unexpected functional properties. The antiferromagnetic order parameter in LSFO and ferromagnetic order parameter in LSMO show a dissimilar dependence on sublayer thickness and temperature, illustrating the high degree of tunability in these artificially layered materials.

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  • Received 22 October 2009

DOI:https://doi.org/10.1103/PhysRevB.80.180417

©2009 American Physical Society

Authors & Affiliations

Y. Takamura1, F. Yang1, N. Kemik1, E. Arenholz2, M. D. Biegalski3, and H. M. Christen3

  • 1Department of Chemical Engineering and Materials Science, University of California–Davis, Davis, California 95616, USA
  • 2Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 3Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

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Issue

Vol. 80, Iss. 18 — 1 November 2009

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