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MA: Fachverband Magnetismus
MA 20: Poster I - Biomagnetism, FePt Nanoparticles, Magnetic Particles/Clusters, Magnetic Materials, Magnetic Semiconductors, Half-metals/Oxides, Multiferroics, Topological Insulators, Spin structures/Phase transitions, Electron theory/Computational micromagnetics, Magnetic coupling phenomena/Exchange bias, Spin-dependent transport, Spin injection/spin currents, Magnetization/Demagnetization dynamics, Magnetic measurement techniques
MA 20.40: Poster
Tuesday, March 27, 2012, 12:15–15:15, Poster A
Fe-Cr cation ordering in PLD grown thin-films of multiferroic double perovskite Bi2FeCrO6 — •Vikas Shabadi, Philipp Komissinskiy, Mehran VafaeeKhanjani, Aldin Radetinac, and Lambert Alff — Institut für Materialwissenschaft, Technische Universität Darmstadt, Petersenstraße 23, 64287 Darmstadt, Germany
Co-existence of magnetism and ferroelectricity was theoretically predicted in the ordered double perovskite Bi2FeCrO6 [1]. We report epitaxial BFCO thin-films grown by pulsed laser deposition from a 20 % Bi-rich ceramic target on single crystal SrTiO3(100) substrates. The degree of the Fe-Cr cation ordering in the BFCO films was comparatively calculated based on the X-ray diffraction patterns. The magnetic moments of the BFCO films were measured with a SQUID magnetometer and analyzed as a function of the Fe-Cr ordering. We believe that the discrepancies in the previously reported values of the magnetic moment of BFCO are connected to the varying degree of Fe-Cr cation ordering [2,3]. Further motivation has been derived from a recent experiment that achieved more than 90 % spontaneous B-site ordering in a similar Fe-Cr based double perovskite system [4].
P. Baettig and N. A. Spaldin. Appl. Phys. Lett. 86, 012505 (2005)
D. H. Kim et al. Appl. Phys. Lett. 89, 102902 (2006)
R. Nechache, et al. J. Appl. Phys. 105, 061621 (2009)
S. Chakraverty, M. Kawasaki et al. Phys. Rev. B 84, 064436 (2011)
The authors would like to acknowledge the support from DAAD.