1Laboratory for Shock Wave and Detonation Physics
Research, Southwest Institute of Fluid Physics, P. O. Box 919-111, Mianyang 621900
2Institute of Applied Physics and Computational Mathematics, Beijing 100088
3Institute of High Temperature and High Pressure Physics, Southwest Jiaotong University, Chengdu 610031
Elastic Constants of Na and K from Non-parameter Perturbation Calculation
1Laboratory for Shock Wave and Detonation Physics
Research, Southwest Institute of Fluid Physics, P. O. Box 919-111, Mianyang 621900
2Institute of Applied Physics and Computational Mathematics, Beijing 100088
3Institute of High Temperature and High Pressure Physics, Southwest Jiaotong University, Chengdu 610031
Abstract： Combined a linear muffin-tin orbital method, which can be used to calculate the total energy and pressure of solids in self-consistent manner, with a generalized elastic energy equation, a non-parameter perturbation method was proposed to compute the elastic constant for cubic metals. The pressure dependence of the shear modulus and bulk modulus for Na and K was calculated. It was found that the computed results agree well with experiments.
CHEN Jun;JING Fu-Qian;CHEN Dong-Quan;ZHANG Jing-Lin;DUAN Su-Qing. Elastic Constants of Na and K from Non-parameter Perturbation Calculation[J]. 中国物理快报, 2001, 18(9): 1237-1239.
CHEN Jun, JING Fu-Qian, CHEN Dong-Quan, ZHANG Jing-Lin, DUAN Su-Qing. Elastic Constants of Na and K from Non-parameter Perturbation Calculation. Chin. Phys. Lett., 2001, 18(9): 1237-1239.
2001, Vol. 18 
