Bi-relaxation behaviors in epitaxial multiferroic double-Perovskite BiFe0.5Mn0.5O3/CaRuO3 heterostructures
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 electri...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing
2011
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/8236/1/Miao-2011-Bi-relaxation_behavi.pdf http://eprints.um.edu.my/8236/ http://apl.aip.org/resource/1/applab/v99/i6/p062905_s1 |
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| Institution: | Universiti Malaya |
| Language: | English |
| Summary: | 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] |
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