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新虫 (初入文坛)

[求助] 光吸收计算不收敛 已有1人参与

想请教一下关于计算光学性质。我尝试了两种INCAR

第一种出现了BOPT < 0, no correction made这个错误,
  SIGMA = 0.2
  ISMEAR = -5
  LREAL = .FALSE.
  ADDGRID = .TRUE.
  ISTART =  1
  ICHARG =  11
  NEDOS = 2000
  CSHIFT = 0.1
  LOPTICS = .TRUE.
  NBANDS = 162
  NPAR = 1
  NELM = 200
  LHFCALC = .TRUE.
  HFSCREEN = 0.2
  AEXX = 0.25
  ALGO = A
  TIME = 0.4
  PRECFOCK = N
  LCHARG = F
  LWAVE = F
  SYMPREC= 1E-8


第二种 一直不收敛
ISTART =  1
  ICHARG =  2
  PREC   =  N
  ENCUT  =  510
  EDIFF  =  1E-06
  EDIFFG =  -0.01
  #NSW    =  300
  POTIM=0.1
  IBRION =  -1
  #ISIF   =  3
  #ISPIN  =  2
  ISMEAR = 0
  SIGMA=0.2
  GGA = PE
  #LORBIT=11
  #ICORELEVEL = 1
  IVDW = 11
  #LWAVE= T
  #LCHARG=T
  ALGO=Damped
  NELM = 200
  #LREAL=.FALSE.
  NPAR=1
  LHFCALC = T
  HFSCREEN=0.2
  TIME=0.4
LOPTICS=T
#  LVHAR = T
  NBANDS = 216
  SYMPREC=1E-8
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木虫 (著名写手)

【答案】应助回帖

ALGO = Damped SYMPREC=1E-8 POTIM=0.1 可能是这仨的问题
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