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[交流] 【求助】ABINIT软件光学计算中动量矩阵的输入文件

请问一下,想计算BaTiO3的光学性能,输入文件bto.in如下:

#Prepare the computation of linear and non-linear optic properties
#of BTO crystal : ground-state with few bands,
#then non-SCF with a larger number of bands, then ddk for different directions
#Note that the k point sampling shoud be finer for significant results. The cut-off energy is also too low.

ndtset 6

#First dataset : SC run with kpoints in the BTO
   iscf1  3
  nband1  4     
  nstep1 25   
kptopt1 1
nbdbuf1 0
prtden1 1   
getden1 0   
getwfk1 0    ! Usual file handling data

#Second dataset : NSC run with large number of bands, and points in the BTO
    iscf2 -2  
   nband2 20  ! This number of bands might be too low for non-linear optics and real part of linear optics
   nstep2 25
  kptopt2  1
  getwfk2  1   
  getden2  1   ! Usual file handling data

#Third dataset : NSC run with large number of bands, and points in the the full BTO
    iscf3 -2  
   nband3 20  ! This number of bands might be too low for non-linear optics and real part of linear optics
   nstep3 25
  kptopt3  3
  getwfk3  2   
  getden3  1   ! Usual file handling data


#Fourth dataset : ddk response function along axis 1
   iscf4 -3
  nband4 20   ! This number of bands might be too low for non-linear optics and real part of linear optics
  nstep4  1  nline4  0
kptopt4  3

   nqpt4  1  qpt4  0.0d0 0.0d0 0.0d0
  rfdir4  1 0 0
rfelfd4  2
getwfk4  3

#Fifth dataset : ddk response function along axis 2
   iscf5 -3
  nband5 20   ! This number of bands might be too low for non-linear optics and real part of linear optics
  nstep5  1  nline5  0
kptopt5  3

   nqpt5  1  qpt5  0.0d0 0.0d0 0.0d0
  rfdir5  0 1 0
rfelfd5  2
getwfk5  3

#Sixth dataset : ddk response function along axis 3
   iscf6 -3
  nband6 20   ! This number of bands might be too low for non-linear optics and real part of linear optics
  nstep6  1  nline6  0
kptopt6  3

   nqpt6  1  qpt6  0.0d0 0.0d0 0.0d0
  rfdir6  0 0 1
rfelfd6  2
getwfk6  3


#Data common to all datasets
nshiftk 1
shiftk  0.5 0.5 0.5
ngkpt  4  4  4        ! This is much too low : should be at least 24x24x24

acell   7.50 7.50 7.50
amu 137.33  47.90  16.00
diemac 10.0
ecut 2.00             ! This is also too low
iscf 5
ixc 1
natom  5
nbdbuf 2
ntypat 3
rprim
     1.0   0.0   0.0
     0.0   1.0   0.0
     0.0   0.0   1.0
xred
     0.0  0.0  0.0
     0.5  0.5  0.5
     0.5  0.5  0.0
     0.5  0.0  0.5
     0.0  0.5  0.5
tnons 72*0.0
typat  1 2 3 3 3
tolwfr  1.e-20
znucl  56 22 8

请问为什么无法计算呢?请问以上参数设置哪里有错?谢谢
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zxzj05

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identation(金币+1,VIP+0): 10-6 11:26
把出错提示贴出来
储氢家族欢迎储氢研究者!
2楼2009-10-06 11:03:43
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identation

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引用回帖:
Originally posted by zxzj05 at 2009-10-6 11:03:
把出错提示贴出来

没有错误提示呀,运行到
DATASET    1 : space group F-4 3 m (#216); Bravais cF (face-center cubic)
就不自动退出了!
PS我用的是abinit-5.8.4的windows编译版本!
可否指导一下,刚接触这软件,不太会用!谢谢!
3楼2009-10-06 11:28:26
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casjxm

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freshgirl(金币+1,VIP+0):谢谢参与~ 10-7 23:01
nband1 4 设置太小
4楼2009-10-07 09:07:57
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zzy1123

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zdhlover(金币+1,VIP+0):欢迎常来交流 10-8 23:56
ecut好像是比较小
5楼2009-10-08 08:54:11
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