期刊
APPLIED PHYSICS LETTERS
卷 107, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4938759
关键词
-
资金
- Alexander-von-Humboldt foundation
- Deutsche Forschungsgemeinschaft [WE 4972/2-1]
- Grants-in-Aid for Scientific Research [26620190, 15H02292] Funding Source: KAKEN
An electric field-temperature (E-T) phase diagram for a lead-free 0.5 mol.% Mn-doped Bi(Na0.1K0.9)TiO3 ceramics was investigated. The x-ray diffraction, dielectric and polarization measurements revealed relaxor behavior and were used to characterize the stability regions of the non-ergodic relaxor, ergodic relaxor and electric field induced ferroelectric states. As indicated by the polarization-current density profiles, transformation between two electric fields, induced ferroelectric states with opposite polarization direction arise via a two-step process through an intermediate relaxor state. Interplay between the ferroelectric state conversion and intermediate relaxor state is governed by the dynamics of polarization relaxation. The presented E-T phase diagram revealed the effects of the applied electric field and temperature on stability regions. This is of special interest since the Bi-0.5(Na0.1K0.9)(0.5)TiO3 ceramics were proposed as a potential piezoceramic material. (C) 2015 AIP Publishing LLC.
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