Ion-electron interaction in molecular-dynamics cascades.
Ion-electron interaction in molecular-dynamics cascades.
复制标题
分子动力学级联中的离子电子相互作用。
DOI:
10.1103/physreva.40.2287
复制
发表时间:
1989
期刊:
影响因子:
--
通讯作者:
M. Victoria
中科院分区:
文献类型:
--
作者:
A. Caro;M. Victoria
We propose a simple model to incorporate inelastic energy losses into molecular-dynamics simulations of high-energy radiation damage, which at the same time describes the metallic thermal conductivity by coupling the ions to a thermal reservoir. Both expressions are based on a local-density description of stopping power. We provide an empirical expression to describe the strength of the ion-electron coupling, which is a function of the local electronic density. The model is then adequate to those simulations where the ion-ion interactions are obtained from many-body potentials based on density-functional formalism.