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yangger

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[求助] 在CASTEP中K-point数量测试疑问

咨询: 我在计算一个含Li材料, 用castep计算。
case1选了12个kpoint,cutoff=300eV, Emptyband=120
case2选了72个kpoint,cutoff=830eV,Emptyband=140

查看kpoint等对结果的影响,因为板上说检查k point就看总能变化是否小于1meV/atom.

但发现在读取bandstr.castep文件时,
case1中显示:
pseudo atomic calculation performed for Li 2S1, a total energy of -5.2296eV.

case2显示:
pseudo atomic calculation performed for Li 1s2 2s1, a total energy of -188.0228eV.

为什么一个多计算了一个电子?
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