Physics – Condensed Matter – Materials Science
Scientific paper
2008-01-22
Appl. Phys. Lett. 92, 062909 (2008)
Physics
Condensed Matter
Materials Science
Submitted to Appl. Phys. Lett. (2008)
Scientific paper
10.1063/1.2842409
High quality epitaxial thin films of LaBiMn4/3Co2/3O6 perovskite were fabricated on (001)-oriented SrTiO3 and LaAlO3 substrates by the pulsed laser deposition technique. Magnetization measurements reveal a strong magnetic anisotropy and a ferromagnetic behavior that is in agreement with a super-exchange interaction between Mn4+ and Co2+ ions, which are randomly distributed in the B-site. A distinct anomaly is observed in the dielectric measurements at 130K corresponding to the onset of the magnetic ordering, suggesting a coupling. Above this temperature, the extrinsic Maxwell-Wagner effect is dominating. Theses results are explained using the Raman spectroscopic studies indicating a weak spin-lattice interaction around this magnetic transition.
Filippi Massimiliano
Jandl S.
Kundu Asish K.
Kundys Bohdan
Laverdiere J.
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