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[求助]
在優(yōu)化Ce的時候不收斂,請各位大俠幫我看看是不是哪塊設(shè)置有問題?
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CASTEP文件里有這樣的文字 Warning: There are no empty bands for at least one kpoint and spin; this may slow the convergence and/or lead to an inaccurate groundstate. If this warning persists, you should consider increasing nextra_bands and/or reducing smearing_width in the param file. Recommend using nextra_bands of 6 to 13. |
木蟲 (正式寫手)
金蟲 (正式寫手)
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我算的Al4ce 改了空帶設(shè)置之后,還是不收斂。******************************************************** Warning: electronic minimisation did not converge during finite basis set correction. ******************************************************** Checkpoint file cannot be written. Error calculate_finite_basis : Convergence failed when doing finite basis set correction. Current trace stack: calculate_finite_basis_corr check_elec_ground_state castep |
鐵桿木蟲 (正式寫手)
金蟲 (正式寫手)
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樓主看一下這篇文獻吧,Ce d-Al P的共價鍵應(yīng)該不難算,不需要用DFT+U,僅DFT即可。 Elastic_properties_and_electronic_structures_of_typical_Al–Ce_structures_from_first-principles_calculationss http://1000eb.com/htnf |
鐵蟲 (小有名氣)

鐵蟲 (小有名氣)

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