Pressure-induced phase transformation within anatase titanium dioxide

被引：4
作者：
Sekiya, T
Okumura, M
Kurita, S
Hamaya, N
机构：
[1] Yokohama Natl Univ, Grad Sch Engn, Yokohama, Kanagawa 2408501, Japan
[2] Ochanomizu Univ, Grad Sch Humanities & Sci, Bunkyo Ku, Tokyo 1128610, Japan
来源：
HIGH PRESSURE RESEARCH | 2003年 / 23卷 / 03期
关键词：
Raman spectroscopy; X-ray diffraction; anatase; columbite; titanium dioxide; phase transition;
D O I：
10.1080/0895795031000139172
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A pressure-induced phase transition was studied within anatase single crystal and powdered samples by Raman spectroscopy and X-ray diffraction. The anatase single crystal transforms to columbite-type polycrystals in the relatively narrow pressure region of 4.3-4.6 GPa. The phase transition within powders is sluggish. The pressure-dependences of the Raman band frequencies and the lattice constants were investigated. In these properties, there is a slight difference between single crystal and powders.
引用
收藏
页码：333 / 338
页数：6
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