SHG studies of multi-ferroelectricity of hexagonal rare-earth ferrite thin films
| Project/Area Number |
23540379
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Waseda University |
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Principal Investigator |
UESU Yoshiaki 早稲田大学, 理工学術院, 名誉教授 (10063744)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 強誘電体 / マルチフェロ物質 / 強弾性体 / SHG顕微鏡 / 薄膜 / 希土類フェライト / 錫ペロブスカイト酸化物 / チタン酸カルシウム / ドメイン / ドメイン境界 / 国際情報交流、フランス / 国際情報交流、イギリス / 国際情報交流、アメリカ |
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| Research Abstract |
Under this research project, the following three results were attained. (1)The coexistence of ferroelectricity and magnetic order in epitaxial hexagonal YbFeO3 thin films fabricated by the PLD method was experimentally found for the first time (published in J.Phys.Soc.Jpn. 2012) (2) Sn doped PbTiO3 thin films were successfully synthesized using a newly developed PLD method with three different ceramic targets. It was revealed that the films is a mixed state of SnTiO3, PbSnO3, and PbTiO3 and ferroelectrics with Tc of 277C. (3) The polar nature of twin boundaries (TBs) of inherently non-polar ferroelastic CaTiO3 was examined by the confocal SHG microscope. Three-dimensional SHG images confirmed that both crystallographically prominent TB and non-prominent TB are SHG active and consequently polar. The point group symmetries of the TBs and directions of the electric polarization are determined from the anisotropy of SHG intensities (published in Phys.Rev.B 2014).
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Report
(4 results)
Research Products
(37 results)
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[Journal Article] Identification of LiNbO3, LiNb3O8 and Li3NbO4 phases in thin films synthesized with different deposition techniques by means of XRD and Raman spectroscopy2013
Author(s)
A. Bartasyte, V. Plausinaitiene, A. Abrutis, S. Stanionyte, S. Margueron, P. Boulet, T. Kobata, Y. Uesu, and J. Gleize
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Journal Title
Journal of Physics, Condensed Matter
Volume: 25
Pages: 20590-20590
Related Report
Peer Reviewed
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[Journal Article] Ferroelectricity and Ferrimagnetism of Hexagonal YbFeO3 Thin Films2012
Author(s)
H. Iida, T. Koizumi, Y. Uesu, K. Kohn, N. Ikeda, S. Mori, R. Haumont, P.-E. Janolin, J. M. Kiat, M. Fukunaga, and Y. Noda
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Journal Title
Journal of Physical Society of Japan
Volume: 81
Pages: 24719-24719
NAID
Related Report
Peer Reviewed
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