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风影柳叶飘落

新虫 (小有名气)

[求助] LDA+U计算总是报错

求教各位大神,本人在计算MnO2和Fe2O3体系时,因为能带问题,增加了LDA+U修正,但是每次都是报错,请问这个是我哪里设置的有误吗?
*Warning* max. SCF cycles performed but system has not reached the groundstate.
  
Current total energy =  -12162.94611613     eV
(energy not corrected for finite basis set)


Dispersion corrected current total energy* =  -12167.34417645     eV

* not corrected for finite basis set

  ********************************************************
  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
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 2
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
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echo1994

禁虫 (知名作家)

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2楼2020-05-11 00:35:23
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风影柳叶飘落

新虫 (小有名气)

引用回帖:
2楼: Originally posted by echo1994 at 2020-05-11 00:35:23
正常,加u就是不好收敛

那请问一般采取什么方式进行纠正呢?我这个不只是不收敛,多数时候它都直接还没优化就报错
3楼2020-05-11 08:37:33
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