期刊
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
卷 30, 期 1, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-651X/ac3ca2
关键词
atomistic simulation; elastic Green's function; surface stiffness; half-space
资金
- Deutsche Forschungsgemeinschaft [PA 2023/4, DO 1412/4]
- European Research Council [757343]
- NEMO at the University of Freiburg [INST 39/963-1 FUGG]
- European Research Council (ERC) [757343] Funding Source: European Research Council (ERC)
The surface elastic response of pure Ni, the random alloy FeNiCr, and an average FeNiCr alloy were studied using the surface lattice Green's function. A scheme for computing per-site Green's function was proposed and their per-site variations were studied. The average FeNiCr alloy accurately reproduced the mean Green's function of the full random alloy.
We study the surface elastic response of pure Ni, the random alloy FeNiCr and an average FeNiCr alloy in terms of the surface lattice Green's function. We propose a scheme for computing per-site Green's function and study their per-site variations. The average FeNiCr alloys accurately reproduces the mean Green's function of the full random alloy. Variation around this mean is largest near the edge of the surface Brillouin-zone and decays as q (-2) with wavevector q towards the Gamma-point. We also present expressions for the continuum surface Green's function of anisotropic solids of finite and infinite thickness and show that the atomistic Green's function approaches continuum near the Gamma-point. Our results are a first step towards efficient contact calculations and Peierls-Nabarro type models for dislocations in high-entropy alloys.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据