Influence of microstructures on exchange bias behaviors of La0.7Sr0.3MnO3/La0.33Ca0.67 MnO3 bilayers

D. W. Kim, T. W. Noh, H. Tanaka, T. Kawai

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Ferromagnetic La0.7Sr0.3MnO3 (LSMO) and antiferromagnetic La0.33Ca0.67MnO3 (LCMO) layers were grown on SrTiO3 (STO) substrates by the pulsed laser deposition technique. LSMO films had rougher surfaces and larger grain sizes than LCMO films. Fully strained bilayers, in which each layer was as thin as 10nm, were prepared by changing their stacking sequences, i.e. LSMO/LCMO/STO and LCMO/LSMO/STO. The former had higher TC (350 K) than the latter (300 K), and exchange bias effects were only observed in the former bilayers. This revealed that microstructures could play an important role in the transport and magnetic properties of manganese oxide thin films.

Original languageEnglish
Pages (from-to)305-309
Number of pages5
JournalSolid State Communications
Issue number6
StatePublished - Feb 2003

Bibliographical note

Funding Information:
The authors would like to express their sincere thanks to D.H. Kim, H.C. Kim, H.-C. Ri, J.-H. Park, and K.-B. Lee for their assistance with experiments and discussions. This work was supported by the MOST through the Creative Research Initiative Program. Experiments at PLS were supported in part by MOST and POSCO.


  • A. Magnetic films and multilayers
  • B. Epitaxy
  • D. Electronic transport


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