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Unraveling the magnetic properties of BiFe 0.5 Cr 0.5 O 3 thin films

2015; American Institute of Physics; Volume: 3; Issue: 11 Linguagem: Inglês

10.1063/1.4935618

2166-532X

Giovanni Vinai, Amit Khare, D. S. Rana, Emiliano Di Gennaro, B. Gobaut, R. Moroni, A. Yu. Petrov, U. Scotti di Uccio, G. Rossi, F. Miletto Granozio, G. Panaccione, Piero Torelli,

Magnetic properties of thin films

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.