APL Materials (Nov 2015)

Unraveling the magnetic properties of BiFe0.5Cr0.5O3 thin films

  • G. Vinai,
  • A. Khare,
  • D. S. Rana,
  • E. Di Gennaro,
  • B. Gobaut,
  • R. Moroni,
  • A. Yu. Petrov,
  • U. Scotti di Uccio,
  • G. Rossi,
  • F. Miletto Granozio,
  • G. Panaccione,
  • P. Torelli

DOI
https://doi.org/10.1063/1.4935618
Journal volume & issue
Vol. 3, no. 11
pp. 116107 – 116107-7

Abstract

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We investigate the structural, chemical, and magnetic properties on BiFe0.5Cr0.5O3 (BFCO) thin films grown on (001) (110) and (111) oriented SrTiO3 (STO) substrates by x-ray magnetic circular dichroism and x-ray diffraction. We show how highly pure BFCO films, differently from the theoretically expected ferrimagnetic behavior, present a very weak dichroic signal at Cr and Fe edges, with both moments aligned with the external field. Chemically sensitive hysteresis loops show no hysteretic behavior and no saturation up to 6.8 T. The linear responses are induced by the tilting of the Cr and Fe moments along the applied magnetic field.