摘要
红外吸收光谱表明样品含片状和分散状分布的杂质氮 ,属Ia型金刚石。利用同步辐射对晶体进行了形貌学研究 ,在近完整晶体内近中心的 ( 0 0 1)和 ( 0 10 )结晶学平面内观察到生长带 ,生长方向平行于 ( 10 0 )和 ( 0 10 )。在欠完整晶体内小角度晶界发育 ,取向角达 2 .5°以上。
Infrared absorption measurements showed that the samples belong to type Ia variety of diamond and contained varying concentrations of A and B forms of nitrogen aggregates as well as platelets. The synchrotron radiation was employed to study the structure of these specimens. Growth bands are observed near the center of the crystals situated within (001) and (010) planes in high crystalline quality diamonds and the growth bands parallel to (100) and (010) crystalline plane. In the imperfect crystals low-angle boundaries are observed and the angles were determined to be larger than 2.5°. The perfection of diamond crystals has no obvious relationship with the concentration of nitrogen.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2001年第6期664-666,共3页
Journal of Functional Materials
基金
北京正负电子对撞机国家实验室重点资助课题
BSRF资助项目
关键词
金刚石
结构缺陷
同步辐射
红外吸收光谱
diamond
structural imperfection
synchrotron radiation
infrared spectroscopy
