摘要
分析了四方相二氧化锆晶体在布里湖区(B.Z)高对称点的振动模的对称性,在此基础上提出了BZ边界M点声子的软化应与四方相到单斜相的相度有关。
In this paper, symmetry properties of normal vibrations at high symmetry points in the Briilouin Zone (BZ) for tetragonal zirconja were analysed. On the basis of the analyses, it is suggested that softening of a phonon τM2 at BZ boundary M point is associated with the tetragonal to monoclinic phase transition in ZrO2.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1991年第3期260-264,共5页
Journal of Xiamen University：Natural Science
关键词
二氧化锆
晶体
振动模
对称性
Zirconia, lattice vibrations, Symmetry analysis, Phase transition
