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

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 1998年 / 31卷

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

页码：351 / 355

页数：5

共 14 条

[1]

[Anonymous], PHYS REV A

[2]

BUCKSCH VR, 1967, ACTA CRYSTALLOGR, V23, P507

[3] ANOMALOUS DISPERSION CORRECTIONS COMPUTED FROM SELF-CONSISTENT FIELD RELATIVISTIC DIRAC-SLATER WAVE FUNCTIONS [J].