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迎風破浪新蟲 (小有名氣)
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[求助]
CASTEP計算聲子譜問題 已有1人參與
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目前在計算一種物質(zhì)6中晶胞結(jié)構(gòu)的聲子譜,計算出了5個都沒有問題,最后一個的時候一直出錯,在論壇上也看到大家出現(xiàn)過類似的原因,不知道有沒有人把這個問題解決掉了, ? *ERROR* in PHONON calculation: Prerequisite GEOMETRY OPTIMISATION ? ? has not been performed or is not converged to sufficient accuracy. ? ? ? ? Maximum force |F|max = 0.5527 eV/A ? ? Parameter GEOM_FORCE_TOL = 0.5000E-01 eV/A ? This could be because of any of the following ? ? (a) No geometry optimisation was performed ? ? (b) A geometry optimisation failed to converge ? ? (c) An error was made copying the optimised geometry to this .cell file ? ? (d) Cutoff, k-point sampling or other convergence parameter differ ? ? from the geometry optimisation run to this one. ? ? Please check your input parameters and if necessary run or re-run a ? ? geometry optimisation calculation. ? ? ? ? Alternatively increase value of GEOM_FORCE_TOL 但是我已經(jīng)做過好多次優(yōu)化,結(jié)果還是出錯。希望有解決的高手幫幫忙! |
新蟲 (小有名氣)
專家顧問 (著名寫手)
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新蟲 (小有名氣)
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