Polarization Reversal Process in MgO Doped Congruent Lithium Tantalate Single Crystals

被引：5

作者：

Akhmatkhanov, A. R. ^{[1
,2
]}

Chuvakova, M. A. ^{[1
]}

Vaskina, E. M. ^{[1
]}

Shur, V. Ya ^{[1
,2
]}

机构：

[1] Ural Fed Univ, Inst Nat Sci, Ekaterinburg 620000, Russia

[2] Labfer Ltd, Ekaterinburg 620014, Russia

来源：

FERROELECTRICS | 2015年 / 476卷 / 01期

关键词：

Kolmogorov-Avrami approach; Domain kinetics; switching current analysis; domain structure evolution; FERROELECTRIC DOMAIN-STRUCTURE; E HYSTERESIS LOOP; KINETICS; NIOBATE; LINBO3; GENERATION; SHAPE;

D O I：

10.1080/00150193.2015.998520

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The polarization reversal process has been studied in 8mol.% MgO doped congruent lithium tantalate single crystal using in situ domain visualization and analysis of the switching current data based on original modification of the Kolmogorov-Avrami approach. Two revealed stages of domain structure evolution during cyclic switching representing slow growth of isolated domains and fast motion of macroscopic domain walls were taken into account during analysis of the switching current data. The coercive field for quasi-static switching about 1.2kV/mm was revealed. The main parameters of the switching process have been compared with other representatives of lithium tantalate family.

引用

页码：57 / 68

页数：12

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