X-RAY-DIFFRACTION STUDIES OF MISCUT CRYSTAL-SURFACES AND OVERLAYERS - A DYNAMICAL DIFFRACTION APPROACH

被引：1

作者：

KAU, CP ^{[1
]}

GAU, TS ^{[1
]}

CHANG, SL ^{[1
]}

机构：

[1] SYNCHROTRON RADIAT RES CTR,HSINCHU 30077,TAIWAN

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1995年 / 41卷 / 02期

关键词：

X-RAY DIFFRACTION; CRYSTALS; SURFACES;

D O I：

10.1016/0254-0584(95)80017-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray surface diffraction data from a miscut Fe3Al crystal and the non-specular crystal-truncation rod of a monolayer Au on a Ge(111) surface are interpreted using the dynamical theory in relation to the structures of surface/interface of thin films and bulk crystals. It is found that in the miscut crystal the X-ray penetration depth depends on the crystal miscut angle due to the boundary effect on the excitation of mode of wave propagation. For the Au/Ge(111) case, the diffracted intensity must be summed up in a kinematical fashion to take account of the scattering from the deposited overlayers. This dynamical calculation scheme provides an absolute scale for intensity versus momentum transfer which is useful for surface-and thin film analysis.

引用

页码：128 / 133

页数：6

共 17 条

[1] X-RAY-DIFFRACTION UNDER SPECULAR REFLECTION CONDITIONS - IDEAL CRYSTALS [J].