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tuhaidan

银虫 (小有名气)

[求助] berry phase!DIPOL?

berry phase计算   如何确定DIPOL设置的正确与否,根据OUTCAR的结构如何半断?奇怪的问题,POSCAR经过berry phase计算,OUTCAR
显示不一样??有人说,VASP里面berry phase程序有问题,这是真的吗?我计算的单胞没有问题,超胞有问题
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tuhaidan

银虫 (小有名气)

引用回帖:
6楼: Originally posted by iamikaruk at 2012-05-14 14:43:35:
你的OUTCAR怎么会改变晶系呢?

你好  可以麻烦你看一下 我的这个有没有问题啊   我计算的结果都是没有绝缘性的呢
berryphase:
#! /bin/sh
tar czvf chg.tgz CHG*
mv WAVECAR wavecar

for i in  2  3
do
cat >INCAR < system=BCO
ENCUT=500
#ISTART=0
#ICHARG=2
ISMEAR=0
SIGMA=0.002
PREC=Accurate
LREAL=Auto
ALGO=Very Fast
IALGO=48
ISPIN=2
MAGMOM=24*0  4  -4  -4   4  4  -4  -4  4  8*0
ISYM=2
LDAU=.True
LDAUL=-1     2    -1
LDAUU=0     6.0    0
LDAUJ=0     0.9    0

LBERRY=.TRUE
IGPAR=$i
NPPSTR=8
DIPOL=0.125 0.125 0.125
!
cp wavecar WAVECAR
tar -xzvf chg.tgz
echo "IGPAR=$i" ; mpirun -np 4 /home/thd/softwares/vasp.5.2/vasp_parallel
cp OUTCAR OUTCAR$i
done
kpints:
Monkhorst Pack
0
Monkhorst Pack
6  6  6
0  0  0
POSCAR:
SYSTEM=BCO                              
   1.01200000000000     
     7.4272314225668428    0.0000000000000000    0.0000000000000000
     0.0000000000000000    7.4272314225668428    0.0000000000000000
     0.0000000000000000    0.0000000000000000    9.5264420582626546
   O    Co   Bi
  24   8   8
Direct
  0.2500000000000000  0.2500000000000000  0.0
  0.2500000000000000  0.0000000000000000  0.25
  0.0000000000000000  0.2500000000000000  0.25
  0.7500000000000000  0.2500000000000000  0.0
  0.7500000000000000  0.0000000000000000  0.25
  0.5000000000000000  0.2500000000000000  0.25
  0.2500000000000000  0.7500000000000000  0.0
  0.2500000000000000  0.5000000000000000  0.25
  0.0000000000000000  0.7500000000000000  0.25
  0.7500000000000000  0.7500000000000000  0.0
  0.7500000000000000  0.5000000000000000  0.25
  0.5000000000000000  0.7500000000000000  0.25
  0.2500000000000000  0.2500000000000000  0.5
  0.2500000000000000  0.0000000000000000  0.75
  0.0000000000000000  0.2500000000000000  0.75
  0.7500000000000000  0.2500000000000000  0.5
  0.7500000000000000  0.0000000000000000  0.75
  0.5000000000000000  0.2500000000000000  0.75
  0.2500000000000000  0.7500000000000000  0.5
  0.2500000000000000  0.5000000000000000  0.75
  0.0000000000000000  0.7500000000000000  0.75
  0.7500000000000000  0.7500000000000000  0.5
  0.7500000000000000  0.5000000000000000  0.75
  0.5000000000000000  0.7500000000000000  0.75
  0.2500000000000000  0.2500000000000000  0.25
  0.7500000000000000  0.2500000000000000  0.25
  0.2500000000000000  0.7500000000000000  0.25
  0.7500000000000000  0.7500000000000000  0.25
  0.2500000000000000  0.2500000000000000  0.75
  0.7500000000000000  0.2500000000000000  0.75
  0.2500000000000000  0.7500000000000000  0.75
  0.7500000000000000  0.7500000000000000  0.75
  0.0000000000000000  0.0000000000000000  0.0
  0.5000000000000000  0.0000000000000000  0.0
  0.0000000000000000  0.5000000000000000  0.0
  0.5000000000000000  0.5000000000000000  0.0
  0.0000000000000000  0.0000000000000000  0.5
  0.5000000000000000  0.0000000000000000  0.5
  0.0000000000000000  0.5000000000000000  0.5
  0.5000000000000000  0.5000000000000000  0.5
POTCAR:PBE
8楼2012-05-15 09:24:57
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iamikaruk

木虫 (著名写手)


franch: 金币+1, 谢谢回帖交流。。。 2012-05-14 09:23:33
OUTCAR不一样是什么意思?你是说不同的DIPOL设置么?
[img]http://osu.ppy.sh/stat2/iamikaruk-0.png[/img]
2楼2012-05-13 22:56:42
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tuhaidan

银虫 (小有名气)

引用回帖:
2楼: Originally posted by iamikaruk at 2012-05-13 22:56:42:
OUTCAR不一样是什么意思?你是说不同的DIPOL设置么?

就是基矢不一样,例如POSCAR是teragonal的晶格常数,有的OUTCAR是teragona的,有的却是orthorhombic
3楼2012-05-14 09:31:00
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tuhaidan

银虫 (小有名气)

引用回帖:
4楼: Originally posted by iamikaruk at 2012-05-14 12:55:02:
这不科学……

这什么意思啊?
5楼2012-05-14 14:18:07
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