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玫瑰茶

新虫 (小有名气)

[交流] vasp优化结构

我用vasp做加压优化,加压100GPa后发现体积变大,请问这是怎么回事啊?这是我的输入文件
ISTART=0
ICHARG=2
PREC=Accurate
ISPIN=1
ENCUT=950
LREAL=.FALSE.
GGA=PE
IBRION=2
NSW=100
POTIM=0.2
EDIFFG=-1E-03
ISIF=3
#Target Pressure
PSTRESS = 1000
加压前
62                                      
   1.00000000000000     
     5.6530495668210277    0.0000000000000000    0.0000000000000000
     0.0000000000000000    2.8269239415018341    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.9973050126072112
     4     4
Direct
  0.3749997218721859  0.7500000000000000  0.7500010609676053
  0.6250002481278116  0.2500000000000000  0.2499989390323947
  0.1250002781278141  0.2500000000000000  0.2500010609676053
  0.8749997518721884  0.7500000000000000  0.7499989390323947
  0.3750014419752645  0.7500000000000000  0.2500013516973283
  0.6249985880247237  0.2500000000000000  0.7499986783026742
  0.1249985580247284  0.2500000000000000  0.7500013216973258
  0.8750014119752763  0.7500000000000000  0.2499986483026717
加压后
62                                      
   1.00000000000000     
     5.6532150188782122    0.0000000000000000    0.0000000000000000
     0.0000000000000000    2.8267371733214302   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.9975160221603696
     4     4
Direct
  0.3749997218721859  0.7500000000000000  0.7500010609676053
  0.6250002481278116  0.2500000000000000  0.2499989390323947
  0.1250002781278141  0.2500000000000000  0.2500010609676053
  0.8749997518721884  0.7500000000000000  0.7499989390323947
  0.3750014419752645  0.7500000000000000  0.2500013516973283
  0.6249985880247237  0.2500000000000000  0.7499986783026742
  0.1249985580247284  0.2500000000000000  0.7500013216973258
  0.8750014119752763  0.7500000000000000  0.2499986483026717
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nansh13

金虫 (正式写手)

★
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LZ你好,你加了100GPa的结果是体积变化不大吧?   我加了也是体积和能量都不变,不知怎么回事儿?
苦心人天不负卧薪尝胆三千越甲可吞吴
2楼2019-01-10 09:12:55
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