Observation of phase change of X-ray polarizability by rocking curves in the Bragg case

被引:6
|
作者
Negishi, R [1 ]
Fukamachi, T
Yoshizawa, M
Zhou, S
Xu, Z
Kawamura, T
Matsumoto, I
Sakamaki, T
Nakajima, T
机构
[1] Saitama Inst Technol, Okabe, Saitama 36902, Japan
[2] Anhui Univ, Dept Phys, Hefei 230039, Peoples R China
[3] Yamanashi Univ, Dept Phys, Kofu, Yamanashi 400, Japan
[4] Univ Lib Informat, Ibaraki 305, Japan
[5] Jeol Ltd, Akishima, Tokyo 196, Japan
[6] KEK, Photon Factory, Ibaraki 305, Japan
关键词
D O I
10.1107/S0021889897011874
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Rocking curves of the reflected and transmitted beams for GaAs 600 in the symmetric Bragg case were measured just below the K-absorption edge of Ga using X-rays from synchrotron radiation. Asymmetry and its reversal of the rocking curves for the transmitted beam were observed: the rocking-curve intensity in the lower-angle region of the exact Bragg angle was larger than that in the higher-angle region when the X-ray energy was 9 eV below the edge, while the asymmetry was reversed when the X-ray energy was about 6 eV below the edge. The reversal has been found to result from the change in the phase of X-ray polarizability.
引用
收藏
页码:351 / 355
页数:5
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