Study of the electrical and dielectric measurements of a rare-earth doped perovskite La0.6Nd0.1Sr0.3Mn0.7Ti0.3O3

被引：2
作者：
Abassi, A. [1 ]
Kallel, N. [1 ]
Kallel, S. [1 ]
Khirouni, K. [2 ]
Pena, O. [3 ]
机构：
[1] Univ Monastir, Fac Sci Monastir, Dept Phys, Lab Physicochim Mat, Monastir 5019, Tunisia
[2] Univ Gabes, Fac Sci Gabes, Lab Phys Mat & Nanomat Appl Environm, Gabes 6079, Tunisia
[3] Univ Rennes 1, CNRS, UMR 6226, Inst Sci Chim Rennes, F-35042 Rennes, France
来源：
INDIAN JOURNAL OF PHYSICS | 2016年 / 90卷 / 12期
关键词：
Perovskite; Impedance spectroscopy; Ac conductivity; Dielectric properties; COMPLEX IMPEDANCE ANALYSIS; EQUAL-TO; 0.30; TRANSPORT-PROPERTIES; CONDUCTION MECHANISM; HOPPING CONDUCTION; GRAIN-BOUNDARIES; THIN-FILMS; SPECTROSCOPY; MANGANITES; TRANSITION;
D O I：
10.1007/s12648-016-0883-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Electrical and dielectric properties of a polycrystalline La0.6Nd0.1Sr0.3Mn0.7Ti0.3O3 sample prepared by standard solid state reaction technique are presented. FTIR studies have showed the vibration of (Mn/Ti) O-6 octahedra. The complex impedance is investigated in a temperature range 120-340 K and in frequency range 40 Hz-10 MHz. The impedance spectra have indicated that the electrical properties are strongly dependent on temperature and frequency, showing a good correlation with the sample microstructure. Ac conductivity is found to obey Jonscher power law. The value of activation energy estimated from the conductivity analysis is slightly higher than that deduced from relaxation analysis.
引用
收藏
页码：1375 / 1383
页数：9
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