期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 19, 页码 5798-5802出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201602028
关键词
dielectric transition; hybrid double perovskite; phase transition; switchable dielectric constant; tolerance factor
资金
- NSFC [21225102]
Extended Goldschmidt tolerance factor t is applied to the hybrid double perovskites (MA)(2)[BB(CN)(6)] (MA=methylammonium cation) to predict and screen dielectric transitions in 121 compounds through the correlations among t, the radius of the B component r(B) and the transition temperature T-c, based on experimental results from model compounds. For (MA)(2)[BCo(CN)(6)], it is concluded that: i)when t>0.873, the cubic phase would be stable below 298K; ii)when 0.873>t>0.805, the cubic phase would be stable between 298 and 523K; iii)the larger the r(B), the higher the T-c of the perovskite (T(c)(1/2)r(B)); and iv)the T-c of the hybrid perovskites can be well tuned by doping the B components.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据