Jahn-Teller assisted polaronic electron hopping in LiCuNb3O9
Jahn-Teller assisted polaronic electron hopping in LiCuNb3O9
复制标题
LiCuNb3O9 中的 Jahn-Teller 辅助极化电子跳跃
DOI:
10.1016/j.jeurceramsoc.2020.11.034
复制
发表时间:
2020-11
影响因子:
5.7
通讯作者:
Chunchang Wang
中科院分区:
文献类型:
--
作者:
Rida Ahmed;Jingmin Wang;Renjun Si;S. ur Rehman;Tao Li;Hong Bi;Yi Yu;Qiuju Li;Yuting Li;S.G. Huang;Youmin Guo;Chunchang Wang
Abstract The role of A-sited elements in double perovskite colossal dielectric LiCuNb3O9 has been analyzed by replacing the Cu ions with Li ions. Structural analysis revealed the presence of Jahn-Teller effect because of the Cu ions. Two thermally activated relaxations have been observed: the lower temperature one has been assigned to be a polaronic relaxation following Mott variable-range-hopping mechanism. Impedance analysis and humidity sensitive test proved that the higher temperature one is a Maxwell-Wagner relaxation. Our work highlights that the polaronic hopping is responsible for the colossal dielectric permittivity behavior of LiCuNb3O9.
登录
查看更多内容
影响因子:
8.4
作者:
Li, T. Y.;Si, R. J.;Wang, C. C.
通讯作者:
Wang, C. C.
DOI:
10.1098/rspa.1937.0142
发表时间:
1937-07-01
影响因子:
--
作者:
Jahn, HA;Teller, E
通讯作者:
Teller, E
影响因子:
41.2
作者:
Hu, Wanbiao;Liu, Yun;Wong-Leung, Jennifer
通讯作者:
Wong-Leung, Jennifer
DOI:
10.1023/a:1007792713484
发表时间:
1999-02
期刊:
Journal of Superconductivity
影响因子:
--
作者:
K. A. M¨ller
通讯作者:
K. A. M¨ller
影响因子:
3.2
作者:
Wang, C. C.;Lei, C. M.;Li, Y. D.
通讯作者:
Li, Y. D.