Elastic Constants of Na and K from Non-parameter Perturbation Calculation

陈军; 经福谦; 陈栋泉; 张景琳; 段素清

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Elastic Constants of Na and K from Non-parameter Perturbation Calculation

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Combining a linear muffin-tin orbital method, which can be used to calculate the total energy and pressure of solids in a self-consistent manner, with a generalized elastic energy equation, a non-parameter perturbation method has been proposed to compute the elastic constant for cubic metals. The pressure dependence of the shear modulus and bulk modulus forNa and K was calculated. It was found that the computed results agree well with experiments.

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《中国物理快报：英文版》 |2001年第9期|1237-1239|共3页
作者
陈军; 经福谦; 陈栋泉; 张景琳; 段素清;
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Laboratory for Shock Wave and Detonation Physics Research, Southwest Institute of Fluid Physics, P.O. Box 919-111, Mianyang 621900;

Laboratory for Shock Wave and Detonation Physics Research, Southwest Institute of Fluid Physics, P.O. Box 919-111, Mianyang 621900;

Institute of High Temperature and High Pressure Physics, Southwest Jiaotong University, Chengdu 610031;

Institute of Applied Physics and Computational Mathematics, Beijing 100088;

Institute of Applied Physics and Computational Mathematics, Beijing 100088;

Institute of Applied Physics and Computational Mathematics, Beijing 100088;

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中图分类物理学;
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Elastic Constants of Na and K from Non-parameter Perturbation Calculation

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