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mengsk

金虫 (著名写手)

[求助] MS/CASTEP 表面优化报错 已有1人参与

金属氧化物沿着某个晶面切开,是一个O原子终止的晶面,这个表面优化没有问题。
当去掉一个氧原子,形成一个O空位时,计算报错,如下:
*Warning* max. SCF cycles performed but system has not reached the groundstate.
  
Current total energy, E     =  -27261.83034374     eV
Current free energy (E-TS)  =  -27261.88048608     eV
(energies not corrected for finite basis set)

NB est. 0K energy (E-0.5TS)      =  -27261.85541491     eV

  ****************************************************************************
  Warning: electronic minimisation did not converge when finding ground state.
  ****************************************************************************
  Writing checkpoint file...

Writing model to 001_O_vacancy_1-4.check
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
MPI Application rank 3 exited before MPI_Finalize() with status 1

请高手指点一下哈!感激涕零~
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fengyu9519

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【答案】应助回帖

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感谢参与,应助指数 +1
mengsk: 金币+10, ★★★★★最佳答案, 感谢! 2015-04-20 16:23:33
报错信息是:在设定的优化步数内没有收敛。
尝试着增多步数
thisismystyle
2楼2015-04-20 15:05:23
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