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幾何優(yōu)化失敗關(guān)于空帶設(shè)置。
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幾何優(yōu)化有一次失敗了 我看到的錯(cuò)誤信息: Initial -1.75451264E+004 1.67125092E+000 13535.93 <-- SCF 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 21 to 33. 1 -1.76037302E+004 1.53846150E+000 4.88364692E+000 13546.77 <-- SCF 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 21 to 33. 2 -1.76045282E+004 1.53859321E+000 6.64992661E-002 13561.88 <-- SCF 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 21 to 33. 3 -1.75860197E+004 1.76348380E+000 -1.54237608E+000 13578.70 <-- SCF 4 -1.75698473E+004 1.96143209E+000 -1.34770147E+000 13594.93 <-- SCF 5 -1.75714922E+004 1.86117631E+000 1.37077228E-001 13613.40 <-- SCF 6 -1.75713110E+004 1.88326023E+000 -1.50998975E-002 13630.24 <-- SCF 7 -1.75712711E+004 1.89356659E+000 -3.32315369E-003 13646.91 <-- SCF 8 -1.75712656E+004 1.89617915E+000 -4.57923993E-004 13664.75 <-- SCF 9 -1.75712566E+004 1.90138445E+000 -7.53081535E-004 13681.54 <-- SCF 10 -1.75712578E+004 1.90541624E+000 1.04547640E-004 13698.35 <-- SCF 11 -1.75712592E+004 1.90479796E+000 1.12248603E-004 13714.19 <-- SCF 12 -1.75712593E+004 1.90441245E+000 9.16745080E-006 13727.34 <-- SCF 13 -1.75712592E+004 1.90426781E+000 -8.63085092E-006 13741.08 <-- SCF ------------------------------------------------------------------------ <-- SCF 這樣的問題該怎樣解決? |
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