铜的能量守恒与压力松弛：基于电子温度依赖相互作用势的扩展双温度模型
材料科学
2026-03-06 v1
摘要
presented for copper in a two-temperature model-molecular dynamics framework. An algorithm for enforcing energy conservation when using such an interaction is provided that is needed due to the changing interaction strength with the degree of excitation. Furthermore, focus is put on how to treat the pressure differences due to an electron temperature gradient following laser irradiation. The influence of various extensions is investigated in large-scale two-temperature model molecular dynamics simulations and compared to existing approaches.
引用
@article{arxiv.2603.04907,
title = {Energy conservation and pressure relaxation in an extended two-temperature model for copper with an electron temperature-dependent interaction potential},
author = {Simon Kümmel and Johannes Roth},
journal= {arXiv preprint arXiv:2603.04907},
year = {2026}
}