期刊论文详细信息
Cluster-variation-method studies on the atomic ordering in complex perovskite alloys | |
Article | |
关键词: DIELECTRIC-PROPERTIES; CERAMICS; DISORDER; FERROELECTRICS; | |
DOI : 10.1103/PhysRevB.61.11918 | |
来源: SCIE |
【 摘 要 】
The atomic ordering in complex perovskite alloys is investigated by the cluster variation method. For the 1/3{111}-type ordered structure, the order-disorder phase transition is the first order, and the order parameter of the 1:2 complex perovskite reaches its maximum near x=0.25. For the 1/2{111}-type ordered structure, the ordering transition is the second order. Phase diagrams for both ordered structures are obtained. The order-disorder line obeys the linear law.
【 授权许可】
Free