Studies on electrical and dielectric properties of Ba1-xSrxTiO3

被引:98
作者
Patil, D. R. [1 ]
Lokare, S. A. [1 ]
Devan, R. S. [1 ]
Chougule, S. S. [1 ]
Kanamadi, C. M. [1 ]
Kolekar, Yd. [1 ]
Chougule, B. K. [1 ]
机构
[1] Shivaji Univ, Dept Phys, Composite Mat Lab, Kolhapur 416004, Maharashtra, India
关键词
X-ray diffraction; DC resistivity; dielectric constant; curie temperature;
D O I
10.1016/j.matchemphys.2007.02.027
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Barium strontium titanate (BST) samples with the molar formula Ba1(-x)Sr(x)TiO(3) in which x varies as 0.1, 0.2 and 0.3 mol% were prepared by standard double sintering ceramic method. The tetragonal perovskite phase formation was confirmed by XRD. The lattice parameters a and c were calculated from the XRD data. The DC resistivity was measured as a function of temperature. The dielectric constant and loss tangent were studied as a function of frequency and temperature. To understand the conduction mechanism in the samples AC conductivity was measured from dielectric data at room temperature in the frequency range 100 Hz to I MHz. Experimental data shows a linear decrease of Curie temperature with increasing strontium content. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:254 / 257
页数:4
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