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meizhixin

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[求助] 合金建模中怎样通过室温密度决定超胞大小?

Ab initio molecular dynamics simulation of the surface composition of Co54Ta11B35 metallic glasses该文章中写道In order to construct the amorphous structure of Co54Ta11B35, we prepared a roughly cubic supercell with 108 Co, 22 Ta and 70 B atoms at desired composition. The original supercell size was determined by the experimentally measured density of the solid Co54Ta11B35 BMG at room temperature, 9.49 g/cm3,即建立200个原子立方超胞模型,通过室温下合金密度决定晶胞尺寸,我的理解是108个Co的质量+22Ta的质量+70B的质量,除以合金密度得到超胞体积,再算出边长即为所建立方晶胞的边长大小。模型就是先建200个Co原子,用Ta和B掺杂,最后将超胞晶格常数改为求得的长度,不知道理解的对不对,还请大神指教。

合金建模中怎样通过室温密度决定超胞大小?
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合金建模中怎样通过室温密度决定超胞大小?-1
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