2010 Fiscal Year Final Research Report
relaxor ferroelectrics induced by magnetism
| Project/Area Number |
20740171
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | The University of Tokyo (2010)
Osaka University (2008-2009) |
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Principal Investigator |
SODA Minoru 東京大学, 物性研究所, 助教 (40463905)
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| Project Period (FY) |
2008 – 2010
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| Keywords | マルチフェロイック / 磁性イオンをもつリラクサー誘電体 / 超常磁性 |
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| Research Abstract |
A new class of superparamagnetism was found in relaxor ferroelectrics having magnetic ions 2/3BiFeO_3-1/3BaTiO_3. The polar nanoregion (PNR), which governs the relaxor ferroelectric property, affects the magnetic ordering significantly, and the resulting magnetic nano-domains are the new origin of superparamagnetism. The superparamagnetism induced by PNR is very unique because of its inherent connection between dielectric and magnetic properties.
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