[Pw_forum] some trouble in Phonon dispersion calculation

[lfhuang]

Dear Xiaodong:
    Could you have paid attention to the coordinations that were chosen by you and the code? Maybe they are different(x-y coordination or reciprocal lattice vector coordination). If you haven't, you can transform between 
them with the transformation matrix that can be found in the pw.x output file.
Best Wishes!
                                                                Yours Sincerely 
                                                                    L.F.Huang
======================================================================
L.F.Huang(黄良锋) lfhuang at theory.issp.ac.cn
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Add: Research Laboratory for Computational Materials Sciences,
Instutue of Solid State Physics,the Chinese Academy of Sciences,
P.O.Box 1129, Hefei 230031, P.R.China
Tel: 86-551-5591464-328(office)
Fax: 86-551-5591434
Web: http://theory.issp.ac.cn (website of our theory group)
http://www.issp.ac.cn    (website of our institute)
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> From: "Wenxiaodong" 
> Subject: [Pw_forum] some trouble in Phonon dispersion calculation
> To: "pw_forum" 
> Message-ID: 
> Content-Type: text/plain;	charset="gb2312"
> 
> Dear everybody
>   Recently, I did a phonon dispersion calculation using PWscf. However, I can not obtain smooth phonon dispersion. That is to say, the phonon dispersion looks like zigzag shape. For making sure, I tried to use the example 07 (in PWscf), while there are same phenomena for phonon dispersion. By the way, I used the plotband.x to handle data.
>   If you have some experience about this, could you tell me the reasons? I will very very appreciate you!
> Best
> Xiaodong


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