Superparamagnetism Induced by Polar Nanoregions in Relaxor Ferroelectric (1-x)BiFeO3--xBaTiO3
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概要
- 論文の詳細を見る
A new class of superparamagnetism was found in relaxor ferroelectric 2/3BiFeO3--1/3BaTiO3. The size of the magnetic particle, estimated from the superparamagnetic magnetization curve, coincides with the size of the polar nanoregion (PNR), which governs the relaxor ferroelectric property. This suggests that the magnetic domain is identical to the PNR. The temperature variations in the sizes of the magnetic domains and PNRs estimated by our neutron diffraction measurements support this picture. Since the same domain provides both electric and magnetic properties, strong coupling between the two properties through the domain size is expected.
- 2011-04-15
著者
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Soda Minoru
Neutron Science Laboratory Institute For Solid State Physics University Of Tokyo
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Wakabayashi Yusuke
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531
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Hirota Kazuma
Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Hirota Kazuma
Department of Earth and Space Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Matsuura Masato
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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