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CASTEP和DMol3板塊吸附構(gòu)型結(jié)構(gòu)優(yōu)化問題
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請(qǐng)教大佬們關(guān)于CASTEP和DMol3結(jié)構(gòu)優(yōu)化吸附構(gòu)型的問題 1.DMol3在優(yōu)化吸附初始構(gòu)型時(shí)沒有報(bào)錯(cuò)error,只有warning:energy went up too far during optimination; dismissing last step and starting in new search direction。前面吸附劑的構(gòu)型可以成功優(yōu)化,但是在優(yōu)化加入吸附質(zhì)金屬離子的構(gòu)型時(shí)出現(xiàn)了問題,每次都是馬上要收斂了,結(jié)果報(bào)失敗,也不說具體原因, 2.后來我改用CASTEP優(yōu)化初始吸附構(gòu)型,同樣出現(xiàn)了問題 *Warning* max. SCF cycles performed but system has not reached the groundstate. WARNING: Your unit cell might be too small to get accurate results for van der Waals Dispersion corrected current total energy* = - 19022.80632767 eV * not corrected for finite basis set Warning: electronic minimisation did not converge when finding ground state. Overall parallel efficiency rating: Satisf actory (66%) Data was distributed by:- G-vector (10-way): efficiency rating: Satisf actory (67%) k- point (2- way); efficiency rating: Excellent (99%) Error check_ elec_ ground_ state : electronic. _minimisation of initial cell failed. Current trace stack: check_ elec_ ground_ state |
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