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tuhaidan

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[求助] 结构优化 POSCAR CONTCAR相差甚远

结构优化
POSCAR同CONTCAR相差很远
CONTCAR(前面部分):
SYSTEM=BTFNO                           
   1.00000000000000     
     7.9682981642630146    0.0000000000000000    0.0000000000000000
     0.0000000000000000    8.1021740961822974    0.0044527236432330
     0.0000000000000000    0.0045004789035693    7.9679679530232077
SYSTEM=BTFNO                           
   1.01000000000000     
     7.9190268563606185    0.0000000000000000    0.0000000000000000
     0.0000000000000000    8.2023574324470108    0.0108745250962009
     0.0000000000000000    0.0122877726053073    7.9196315716149766
SYSTEM=BTFNO                           
   1.02000000000000     
     7.9804243437196982    0.0000000000000000    0.0000000000000000
     0.0000000000000000    7.9084143133804483   -0.0022808453640600
     0.0000000000000000   -0.0023052084302264    8.1507810767792623
SYSTEM=BTFNO                           
   1.03000000000000     
     7.7417878869683712    0.0000000000000000    0.0000000000000000
     0.0000000000000000    8.3051539728385109    0.0414353969308419
     0.0000000000000000    0.0497875356166760    8.0009050778702413

POTCAR  PEB
KPOINTS   4*4*4
#INCAR
system=BTONF
ENCUT=500
ISTART=0
ICHARG=2
ISMEAR=-5
#EDIFFG =-0.01
PREC=Accurate
LREAL=Auto
ALGO=Very Fast
IALGO=48

ISIF=4
IBRION=2
NSW=200

LDAU=.True
LDAUL=-1 -1 -1    2  -1
LDAUU= 0  0  0  4.5   0
LDAUJ= 0  0  0  0.5   0

脚本:
for i in   0.98  0.99  1.00  1.01   1.02
do
cat >POSCAR < SYSTEM=BTFNO
$i
       7.984000000000000       0.000000000000000       0.000000000000000
       0.000000000000000       7.984000000000000       0.000000000000000
       0.000000000000000       0.000000000000000       8.070000000000000
N      O     Ti    Fe    Ba
1     23      7     1     8
Direct
..........
!
echo "a= $i angstom" ; mpirun -np 4 /home/thd/softwares/vasp.5.2/vasp_parallel
E=`grep "TOTEN" OUTCAR | tail -1 | awk '{printf "%12.6f\n",$5}'`
echo $i $V $E >> commom-abc
cp CONTCAR CONTCAR$i
done
大家帮忙看一下,这是什么问题?谢谢了!!!
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