Bi-relaxation behaviors in epitaxial multiferroic double-Perovskite BiFe0.5Mn0.5O3/CaRuO3 heterostructures

Chew, K.H. and Jiang, Y. and Miao, J. and Zhang, X. and Zhan, Q. (2011) Bi-relaxation behaviors in epitaxial multiferroic double-Perovskite BiFe0.5Mn0.5O3/CaRuO3 heterostructures. Applied Physics Letters, 99 (6). ISSN 0003-6951

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Abstract

Multiferroic double-perovskite BiFe0.5Mn0.5O3 thin film heterostructures were epitaxially grown on CaRuO3-buffered (001) SrTiO3 by pulse laser deposition. Typical Vogel-Fulcher relaxorlike dielectric and magnetic susceptibilities were observed, implying the film exhibits the properties of an electric relaxor and a magnetic relaxor. Polarization and size of polar nanoregions (PNRs) were determined by fitting the dielectric constant to a multi-polarization mechanism model. It was found that PNRs of 7-11 nm decrease from 0.67 mu C/cm(2) to 0.11 mu C/cm(2), as the temperature increases from 380 K to 460 K. A weak ferromagnetism was observed via magnetic hysteresis loops up to 300 K. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624847]

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 29 Jul 2013 02:03
Last Modified: 29 Jul 2013 02:03
URI: http://eprints.um.edu.my/id/eprint/8236

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