Visualization of valence electron density distribution by quadrupole scattering measurement
Project/Area Number |
23654127
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics II
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Research Institution | The Institute of Physical and Chemical Research |
Principal Investigator |
OHSUMI Hiroyuki 独立行政法人理化学研究所, 高田構造科学研究室, 専任研究員 (90360825)
|
Project Period (FY) |
2011 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
Keywords | X線回折 / 偏光依存性 / 消衰効果 / 多波回折 / 電荷整列 / 軌道整列 / X線回折 / 電子密度解析 / 放射線、X線、粒子線 |
Research Abstract |
The aim of this study is to detect non-Thomson scattering, which plays a key role in selective measurement of scattered X-rays only from valence electrons, by utilizing polarization properties of synchrotron radiation and improving polarization control/measurement techniques. From the dependence of diffraction intensity on incident X-ray polarization, it has been found that the super-lattice reflection arising from orbital ordering in manganites is attributed to non-Thomson scattering. In addition, it has been demonstrated that the effect of extinction can be independently evaluated for every reflection.
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Report
(3 results)
Research Products
(20 results)
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[Journal Article] Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd_2Os_2O_72012
Author(s)
J. Yamaura, K. Ohgushi, H. Ohsumi, T. Hasegawa, I. Yamauchi, K. Sugimoto, S. Takeshita, A. Tokuda, M. Takata, M. Udagawa, M. Takigawa, H. Harima, T. Arima, and Z. Hiroi
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Journal Title
Phys. Rev. Lett
Volume: 108
Pages: 247205-247205
Related Report
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[Journal Article] Orbital structures in spinel vanadates AV_2O_4 (A=Fe, Mn)2012
Author(s)
Y. Nii, H. Sagayama, T, Arima, S. Aoyagi, R. Sakai, S. Maki, E. Nishibori, H. Sawa, K. Sugimoto, H. Ohsumi, and M. Takata
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Journal Title
Phys. Rev
Volume: B 86
Pages: 125142-125142
Related Report
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[Journal Article] Tetrahedral Magnetic Order without Spatial Symmetry Breaking in the Pyrochlore Lattice of Cd2Os2O72012
Author(s)
J. Yamaura, K. Ohgushi, H. Ohsumi, T. Hasegawa, I. Yamauchi, K. Sugimoto, S. Takeshita, A. Tokuda, M. Takata, M. Udagawa, M. Takigawa, H. Harima, T. Arima, and Z. Hiroi
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Journal Title
Phys. Rev. Lett.
Volume: 108
Issue: 24
Pages: 247205-247205
DOI
Related Report
Peer Reviewed
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[Journal Article] Orbital structures in spinel vanadates AV_2O_4 (A=Fe, Mn)2012
Author(s)
Y.Nii, H. Sagayama, T. Arima, S. Aoyagi, R. Sakai, S. Maki, E.Nishibori, H. Sawa, K. Sugimoto, H. Ohsumi, M. Takata
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Journal Title
Physical Review B
Volume: 86
Issue: 12
DOI
Related Report
Peer Reviewed
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