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Lattice structure and magnetization of LaCoO 3 thin films

Author

Listed:
  • A. D. Rata
  • A. Herklotz
  • L. Schultz
  • K. Dörr

Abstract

We investigate the structure and magnetic properties of thin films of the LaCoO 3 compound. Thin films are deposited by pulsed laser deposition on various substrates in order to tune the strain from compressive to tensile. Single-phase (001) oriented LaCoO 3 layers were grown on all substrates despite large misfits. The tetragonal distortion of the films covers a wide range from -2% to 2.8%. Our LaCoO 3 films are ferromagnetic with Curie temperature around 85 K, contrary to the bulk. The total magnetic moment is below 1μ B /Co 3+ , a value relatively small for an exited spin-state of the Co 3+ ions, but comparable to values reported in literature. A correlation of strain states and magnetic moment of Co 3+ ions in LaCoO 3 thin films is observed. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010

Suggested Citation

  • A. D. Rata & A. Herklotz & L. Schultz & K. Dörr, 2010. "Lattice structure and magnetization of LaCoO 3 thin films," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 76(2), pages 215-219, July.
    • Handle: RePEc:spr:eurphb:v:76:y:2010:i:2:p:215-219
    DOI: 10.1140/epjb/e2010-00203-6
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