| 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 |
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| Research Field |
Condensed matter physics II
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| Research Institution | The Institute of Physical and Chemical Research |
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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)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| 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)
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| 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 |
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| 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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