2011 Fiscal Year Final Research Report
Study of spin-lattice coupling in multiferroic materials
| Project/Area Number |
22740211
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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 II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SAGAYAMA Hajime 東京大学, 大学院・新領域創成科学研究科, 助教 (90436171)
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| Project Period (FY) |
2010 – 2011
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| Keywords | マルチフェロイック / 電気磁気効果 / 磁歪 / 放射光 / 中性子散乱 |
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| Research Abstract |
In this study I have investigated spin-lattice coupling in new-type multiferroic materials, F_eC_(r2) O_4 and M_(n3) O_4, by using synchrotron X-ray diffraction and neutron diffraction technique. From these experimental results, it was clarified that orbital-degree-of-freedom play important role in large magnetic field response of these materials. I have performed inelastic neutron scattering experiment on multiferroic T_bM_nO_3 to understand electromagnetic excitations observed by terahertz spectroscopy measurements.
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