单斜晶系
相界
材料科学
四方晶系
中子衍射
正交晶系
结晶学
相图
凝聚态物理
相(物质)
分析化学(期刊)
晶体结构
物理
化学
色谱法
量子力学
作者
Yoshiaki Uesu,M. Matsuda,Y. Yamada,K. Fujishiro,D. E. Cox,Beatriz Noheda,G. Shirane
摘要
The symmetry was examined using neutron diffraction method on Pb(Zn 1/3 Nb 2/3 )O 3 –9%PbTiO 3 (PZN/9PT) which has a composition at the morphotropic phase boundary between Pb(Zn 1/3 Nb 2/3 )O 3 and PbTiO 3 . The results were compared with those of other specimens with same composition but with different prehistory. The equilibrium state of all examined specimens is not the mixture of rhombohedral and tetragonal phases of the end members but exists in a new polarization rotation line Mc# (orthorhombic-monoclinic line). Among examined specimens, one exhibited tetragonal symmetry at room temperature but recovered monoclinic phase after a cooling and heating cycle.
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