DEFORMATION OF OCTAHEDRA AT LAB6(100) SURFACE STUDIED BY HREELS

被引：18
|
作者：
NAGAO, T [1 ]
KITAMURA, T [1 ]
IIZUKA, T [1 ]
UMEUCHI, M [1 ]
OSHIMA, C [1 ]
OTANI, S [1 ]
机构：
[1] NATL INST RES INORGAN MAT,TSUKUBA,IBARAKI 305,JAPAN
来源：
SURFACE SCIENCE | 1993年 / 287卷 / pt A期
关键词：
10;
D O I：
10.1016/0039-6028(93)90809-X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The surface phonons of LaB6(100) surface have been investigated by means of high resolution electron energy spectroscopy. On the clean surface we have observed 8 loss peaks in the off-specular spectra, of which the higher energy losses are related to the vibrations of the three-dimensional network of boron. Theoretical analysis based on a force constant model strongly suggests the deformation of the three-dimensional network of boron; the topmost octahedra are expanded by approximately 0.004 nm parallel to the surface.
引用
收藏
页码：391 / 395
页数：5
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