Elastic moduli and thermal properties of La_0.83Sr_0.17MnO₃

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• 作者：N.K. Gaur ; Renu Choithrani ; Archana Srivastava
• 关键词：A. CMR materials ; A. Manganates ; D. Specific heat ; D. Rare-earth ion
• 刊名：Solid State Communications
• 出版年：2008
• 期刊代码：101_00381098
• 类别：ms
• 出版时间：February 2008
• 卷：145
• 期：5-6
• 页码：308-311
• 文件大小：358 K

摘要

We have investigated elastic moduli c₁₁, c₁₂ and c₄₄ of La_0.83Sr_0.17MnO₃ in cubic phase using Rigid Ion Model (RIM) at temperature che/MiamiImageURL/B6TVW-4R2RMXY-2-21/0?wchp=dGLbVlb-zSkzk" alt="Click to view the MathML source" align="absbottom" border="0" height=12 width=117>. The elastic moduli computed by us show an anomalous behaviour with the variation of temperature. Our results on the elastic moduli for the temperature range che/MiamiImageURL/B6TVW-4R2RMXY-2-3T/0?wchp=dGLbVlb-zSkzk" alt="Click to view the MathML source" align="absbottom" border="0" height=12 width=118> are in good agreement with resonant ultrasound spectroscopy measured data. Furthermore, we have reported the Specific heat at different temperature to examine the electron-lattice interaction of La_0.83Sr_0.17MnO₃. Besides, the results on cohesive and thermal properties are also discussed.