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huangshp

金虫 (小有名气)

[求助] Questions about Relativist​ic effects in VASP

In the paper (Ab-Initio Simulations of Materials Using VASP: Density-Functional Theory and Beyond, J Comput Chem 29: 2044–2078, 2008), it states “In the standard mode, VASP performs a fully relativistic calculation for the core-electrons and treats valence electrons in a scalar relativistic approximation.”

I am not clear how VASP includes full relativistic effects for core-electrons. what relativistic calculation is VASP performing for the core? Does it use the relativistic K-S equations when solving for the core electrons? Is the scalar relativitic approximation treated for valence electrons via PAW potentil? What approximation is this (e.g. ZORA, IORA, DKn, IOTC, etc.)?
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huangshp

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有人知道吗?进来指导下
2楼2013-11-20 00:05:26
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gump_813

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【答案】应助回帖


感谢参与,应助指数 +1
sunyang1988: 金币+1, 谢谢交流 2013-11-22 06:58:41
记得在vasp tutorial里面的magnetic properties那一章看到过 pseudopotential是scalar relativistic的 spin-orbital coupling是在PAW的hamitonian里加的 什么近似的不太知道 一知半解 不好意思 太理论了
3楼2013-11-20 00:56:44
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