Structure and Magnetic Characterization οf BiFeO3/YBa2Cu3O7 Bilayers
K. Werner-Malento a, A. Tsarou a, P. Dluzewski a, W. Paszkowicz a, R. Minikayev a, M. Sawicki a, Kees van der Beek b, M. Konczykowski b and P. Przyslupski a
a Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
b Laboratoire des Solides Irradies, Ecole Polytechnique, Palaiesau, France
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Bilayered epitaxial BiFeO3/YBa2Cu3O7 films were fabricated on (100) [(LaAlO3)0.3(Sr2TaAlO6)0.7] substrates by sputtering method. For structural comparison the bilayered BiFeO3/La0.67Sr0.33MnO3 films were also deposited on (100) SrTiO3 substrates. A weak ferromagnetic moment is observed in BiFeO3/YBa2Cu3O7 films. The mechanism responsible for weak ferromagnetic moment arises presumably from the epitaxy strain induced canted antiferromagnetic structure.
DOI: 10.12693/APhysPolA.115.95
PACS numbers: 74.25.Ha, 74.78.Fk, 75.70.Cn,77.84.Bw