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byin

铜虫 (正式写手)

楼主,你的问题解决了吗?我算了一下,体积也是115
21楼2011-05-22 19:29:51
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donggaomin

金虫 (正式写手)

引用回帖:
Originally posted by byin at 2011-05-22 19:29:51:
楼主,你的问题解决了吗?我算了一下,体积也是115

解决了,加了SPIN = 2 体积就上去了,再调一下磁矩更好
好好学习
22楼2011-05-22 20:15:17
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byin

铜虫 (正式写手)

引用回帖:
Originally posted by donggaomin at 2011-05-22 20:15:17:
解决了,加了SPIN = 2 体积就上去了,再调一下磁矩更好

我也是加了spin的,但不知道为什么是115.

可不可以把你的4个输入文件发我邮箱,我参考一下。
byin87@gmail.com


多谢多谢!
23楼2011-05-23 14:22:56
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byin

铜虫 (正式写手)

SYSTEM=BiFeO3_R3C
#------------------------
PREC=ACCURATE
ISTART=0
ICHARG=2
ISPIN=2
MAGMOM=0 0 0 0 0 0 6 -6 0 0
#------------------------
ENCUT=875
NELMIN=4
EDIFF=1E-7
#------------------------
EDIFFG=-1E-3
NSW=200
IBRION=2
ISIF=3
POTIM=0.1
#------------------------
RWIGS=0.66 1.27 1.7
#------------------------
ISMEAR=0
SIGMA=0.1
#------------------------
NPAR=1
#------------------------

Automatic mesh
0
Monkhorst-pack
5 5 5
0 0 0

BiFeO3_R3C                              
   1.00000000000000     
     4.4648357638020357    1.5608657685852012    2.6839904856633905
    -0.0044871253284361    4.7298034008796881    2.6839904856633905
    -0.0044871253284361   -0.0063284337730105    5.4382722521983631
   6   2   2
Direct
  0.5422686339428395  0.9429091751265233  0.3985959180416359
  0.3985959180416359  0.5422686339428395  0.9429091751265233
  0.9429091751265233  0.3985959180416359  0.5422686339428395
  0.4429091751265233  0.0422686339428395  0.8985959180416359
  0.0422686339428395  0.8985959180416359  0.4429091751265233
  0.8985959180416359  0.4429091751265233  0.0422686339428395
  0.2309011336597706  0.2309011336597706  0.2309011336597706
  0.7309011336597706  0.7309011336597706  0.7309011336597706
  0.9993251616405843  0.9993251616405843  0.9993251616405843
  0.4993251616405843  0.4993251616405843  0.4993251616405843

  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
  0.00000000E+00  0.00000000E+00  0.00000000E+00
24楼2011-05-26 13:59:22
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byin

铜虫 (正式写手)

LZ还请帮我看看~~多谢多谢
25楼2011-05-26 14:00:00
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donggaomin

金虫 (正式写手)

引用回帖:
Originally posted by byin at 2011-05-26 13:59:22:
SYSTEM=BiFeO3_R3C
#------------------------
PREC=ACCURATE
ISTART=0
ICHARG=2
ISPIN=2
MAGMOM=0 0 0 0 0 0 6 -6 0 0
#------------------------
ENCUT=875
NELMIN=4
EDIFF=1E-7
#----------------- ...

看了你的输入文件,和我的几乎一样啦,只是你用的是LDA吧?如果是的话你的这个设置是115的,如果你用GGA,会是125-128。如果问题还没有解决,我发输入文件给你。
好好学习
26楼2011-05-26 16:30:49
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donggaomin

金虫 (正式写手)

引用回帖:
Originally posted by byin at 2011-05-26 14:00:00:
LZ还请帮我看看~~多谢多谢

咱们可以多交流
好好学习
27楼2011-05-26 17:16:56
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future_wl

木虫 (著名写手)

你好,你算过BiFeO3的能带结构吗?结果和文献比如何?我算的价带顶位置总是不对,还望请教啊
未来就是现在
28楼2013-02-01 13:22:59
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