[QE-users] Phonon Density of States by atomic type
Pietro Delugas
pdelugas at sissa.it
Mon Aug 3 21:29:09 CEST 2020
Hi
I was also surprised to discover it. Matdyn.x prints all the projected
phononic dos in the dos files, they are the columns on the right of the
total dos.
Pietro
Il 8/3/2020 8:03 PM, Nicola Marzari ha scritto:
> On 03/08/2020 18:39, Baer, Bradly wrote:
>> Hello,
>>
>> I was consulting the reference materials on materialsproject.org
>> <https://materialsproject.org/materials/mp-830/> for a
>> semiconductor. In the section on phonon results, they had the phonon
>> density of states plotted with the contributions of each type of atom
>> as well as the total DOS. I have calculated the DOS of a system
>> before using QE, but only did the total DOS of the system. Does QE
>> have the capability to give similar results?
>>
>> Thanks,
>> Brad
>
>
> Dear Brad,
>
>
> for phonons I do not think there is any ready-made tool (but I could
> be wrong). For phonon dispersions, we have implemented an online
> phonon visulizer, based on the code by Henrique Miranda:
> https://www.materialscloud.org/work/tools/interactivephonon
> that allows you to explore graphically/interactively phonon dispersions
> https://www.materialscloud.org/discover/2dstructures/details/BN
>
> For the phonon DOS, if you have done a calculation with QE, you can at
> zero cost interpolate/diagonalize the dynamical matrices on fine q
> meshes, and build the DOS yourself. But maybe others have some tool
> ready to use.
>
> nicola
>
>
>>
>> --------------------------------------------------------
>> Bradly Baer
>> Graduate Research Assistant, Walker Lab
>> Interdisciplinary Materials Science
>> Vanderbilt University
>>
>>
>>
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>
>
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