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hugoxia

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[求助] vasp结构优化。结构中原子出现大的跳跃,help! 已有3人参与

小弟在优化一个晶胞结构是原子出现跳跃,其他体系中未出现此情况;INCAR文件如下:
# SCF input for VASP
# Note that VASP uses the FIRST occurence of a keyword
SYSTEM = K2AlF5_bulk
    PREC = Accurate
   ENCUT = 520.000
  IBRION = 2
     NSW = 500
   POTIM = 0.01
    ISIF = 2
  NELMIN = 2
   EDIFF = 1.0e-05
  EDIFFG = -0.02
  NBLOCK = 1
  NWRITE = 2
    NELM = 100
    ALGO = Fast
   ISPIN = 1
  INIWAV = 1
  ISTART = 0
  ICHARG = 2
   LWAVE = .FALSE.
  LCHARG = .FALSE.
ADDGRID = .FALSE.
LHYPERFINE = .FALSE.
  ISMEAR = 0
   SIGMA = 0.1
   LREAL = Auto
     NPAR = 4
    LVDW = .TRUE.
VDW_SCALING = 0.75
望各位 不吝赐教
vasp结构优化。结构中原子出现大的跳跃,help!
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vasp结构优化。结构中原子出现大的跳跃,help!-1
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