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xuejing141新蟲 (小有名氣)
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[求助]
雜化泛函計算時的參數(shù)設(shè)置
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進行雜化泛函計算時,見VASP說明上說It is strongly recommended to perform standard DFT calculations first, and to start HF type calculations from a preconverged WAVECAR file?催@句話不太理解,是先用標準的DFT進行優(yōu)化和靜態(tài),然后再在INCAR中加入ISTART = 1 LHFCALC = .TRUE. ; HFSCREEN = 0.2 NBANDS = number of occupied bands ALGO = All ; TIME = 0.4 ENCUTFOCK = 0 ! omit flag for high quality calculations NKRED = 2 ! omit flag for high quality calculations 這些參數(shù)進行性質(zhì)計算嗎?比如態(tài)密度,能帶圖。急用 |
木蟲 (著名寫手)
二師兄
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請看看這個帖子啊 http://www.gaoyang168.com/bbs/viewthread.php?tid=4016318 HSE計算能帶尚可,計算態(tài)密度,幾乎和死機差不多 |
新蟲 (小有名氣)
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哦,嗯,計算能帶就行,我想知道我說的這個過程對嗎?先用標準的DFT進行優(yōu)化和靜態(tài),然后再在INCAR中加入ISTART = 1 LHFCALC = .TRUE. ; HFSCREEN = 0.2 NBANDS = number of occupied bands ALGO = All ; TIME = 0.4 ENCUTFOCK = 0 ! omit flag for high quality calculations NKRED = 2 ! omit flag for high quality calculations 這些參數(shù)進行能帶計算。 |
木蟲 (著名寫手)
二師兄

木蟲 (著名寫手)
二師兄

木蟲 (著名寫手)
二師兄

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