EFFECTS OF NIOBIUM-DOPING ON THE DIELECTRIC AND SWITCHING PROPERTIES OF BARIUM TITANATE CRYSTALS

被引：1
|
作者：
Bolshakova, N. N. [1 ]
Zaviyalova, S. D. [1 ]
Nekrasova, G. M. [2 ]
Semenova, E. M. [1 ]
机构：
[1] Tver State Univ, Condensed Matter Phys Dept, Tver, Russia
[2] Tver State Agr Acad, Math & Comp Sci Dept, Tver, Russia
来源：
PHYSICAL AND CHEMICAL ASPECTS OF THE STUDY OF CLUSTERS NANOSTRUCTURES AND NANOMATERIALS | 2020年 / 12期
关键词：
BaTiO3; unipolar crystals; polarization switching; ligand; DOMAIN-STRUCTURE;
D O I：
10.26456/pcascnn/2020.12.042
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper reports the results of investigations of dielectric properties, switching processes and the domain structure of niobium-containing barium titanate crystals. It was shown that an impurity of niobium Nb5+, whose ions replace Ti4+ and change the ionic composition of the lattice, is important for behavior of the domain structure of BaTiO3: Nb5+ crystals. At a change in temperature (0,3 K.c(-1)) a transformation of the domain structure occurs in the BaTiO3: Nb5+ crystals under the influence of the internal thermoelastic stresses similar to 0,7 MPa and the depolarizing fields similar to 20 kV.m(-1).
引用
收藏
页码：42 / 52
页数：11
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