Electrical properties of Li2BiV5O15 ceramics

被引：87

作者：

Das, P. S.

Chakraborty, P. K.

Behera, Banarji

Choudhary, R. N. P. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India

[2] Sambalpur Univ, Dept Phys, Sambalpur 768019, India

[3] Midnapore Coll, Dept Phys, Midnapore 721101, India

来源：

PHYSICA B-CONDENSED MATTER | 2007年 / 395卷 / 1-2期

关键词：

phase transition; dielectrics; conductivity; impedance;

D O I：

10.1016/j.physb.2007.02.065

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The polycrystalline sample of Li2BiV5O15 was prepared by a mixed-oxide method, relatively at low temperature (i.e., 550 degrees C). Room temperature XRD pattern confirms the formation of the compound with an orthorhombic crystal system. Studies of dielectric properties show that the compound exhibits an anomaly at 416 degrees C (usually called transition temperature) at 50 and 100 kHz, with diffuse-type phase transition. The electrical parameters of the material were studied using complex impedance spectroscopy in a wide temperature (30-500 degrees C) and frequency (10(2)-10(6) Hz) range. The compound exhibits non-Debye of relaxation process. The activation energy of the material was found to be similar to 1.08 eV in the high temperature region. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：98 / 103

页数：6

共 25 条

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