Single crystal growth and characterization of strontium tartrate

被引：28

作者：

Arora, S. K. ^{[1
]}

Patel, Vipul ^{[1
]}

Chudasama, Bhupendra ^{[1
]}

Amin, Brijesh ^{[1
]}

机构：

[1] Sardar Patel Univ, Dept Phys, Vallabh Vidyanagar 388120, Gujarat, India

来源：

JOURNAL OF CRYSTAL GROWTH | 2005年 / 275卷 / 1-2期

关键词：

Characterization; Growth from solutions; Single crystal growth; Perovskites; Dielectric materials;

D O I：

10.1016/j.jcrysgro.2004.11.047

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Conditions for the growth of large and perfect single crystals of strontium tartrate trihydrate by controlled ionic diffusion of reacting ions through silica hydrogel have been optimized. The TGA/DTA thermograms reveal specific decomposition reactions. The values of several structural and physical parameters have been determined. The anisotropy in Vicker's microhardness leads to a study of fracture toughness, brittleness index and yield strength. The measurement of DC conductivity reveals hopping and band-type conduction mechanism with specific activation energy values in different temperature domains. Optical absorption study shows the existence of indirect transition at 5.20 eV and direct gap at 5.49 eV. The phonons invoked have been identified as internal vibration of strontium ions at 643 cm(-1). (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：E657 / E661

页数：5

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