Dielectric Relaxation Phenomena in SBN Single Crystals Doped with Ce

被引：1

作者：

Korchak, Yu. ^{[1
]}

Kapustianyk, V. ^{[1
]}

Fedor, B. ^{[2
]}

Girnyk, I. ^{[1
]}

Eliyashevskyi, Yu. ^{[1
]}

机构：

[1] Ivan Franko Natl Univ Lviv, Sci Tech & Educ Ctr Low Temp Studies, UA-79017 Lvov, Ukraine

[2] Hetman P Sahaydachnyi Acad Army, UA-79012 Lvov, Ukraine

来源：

ACTA PHYSICA POLONICA A | 2011年 / 119卷 / 06期

关键词：

RELAXOR FERROELECTRICS; STRONTIUM; STATE;

D O I：

10.12693/APhysPolA.119.871

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dielectric study of Sr0.73Ba0.27Nb2O6:Ce (SBN) crystals along [010] crystallographic axis was performed in the temperature region of 310-360 K and frequency range from 25 Hz up to 1 MHz. The thermal dipole relaxation of quasi-Debye-type for this orientation of sample was observed in both investigated structural phases. The phase transition was most clearly seen from the temperature dependence of the relaxation time at T-c = 320 K. The relaxation processes were related to the collective oscillations of the Nb-O bonds in the two different type corner-sharing NbO6 octahedra aligned along c-axis.

引用

页码：871 / 874

页数：4

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