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qiqi2926

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[交流] 【求助成功】计算能带结构时出现错误,请教 已有8人参与

计算六角晶系的能带结构,自洽得到电荷密度已经完成,再进行第二步,也就是用所得到的电荷密度再重新做非自洽计算时出现问题。
《参考侯老师的文章》:找出简约布里渊区的特殊k点,编辑了syml文件(利用gk.x产生KPOINTS的输入文件)。得到KPOINTS文件。同时准备好计算所需的POTCAR,POSCAR(优化以后的),和INCAR(从侯老师的书上改写得到的)。
进行计算,出现错误如下:
get the following lines in OUTCAR
----------------------------
Analysis of symmetry for dynamics (positions and initial velocities):

Subroutine DYNSYM returns: Found 12 space group operations
(whereof 6 operations were pure point group operations)
out of a pool of 12 trial space group operations
(whereof 6 operations were pure point group operations)
and found also 1 'primitive' translations


The dynamic configuration has the point symmetry C_3v.
The point group associated with its full space group is C_6v.
--------------------------------------------
it gave the correct space group, but obviously the structure was wrong.
I am puzzled now, please help me out, thx!

[ Last edited by qiqi2926 on 2010-8-11 at 23:46 ]
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xiaomagh

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zzy870720z(金币+1):谢谢指教 2010-08-10 19:07:24
仔细检查一下,肯定是对称性出现问题了。比如产生的K点,是不是错了。
4楼2010-08-10 15:47:45
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