[Pw_forum] plotting imaginary dielectric function

Andrea Ferretti andrea.ferretti at unimore.it
Fri Sep 16 16:55:32 CEST 2016

Dear Adnan,

indeed, taking the trace of the dielectric tensor is a very common 
procedure (eg for unoriented systems), but this really depends on
your specific system and on what you want to compute...
In a sense, you should know and decide


> This kind of file contains three columns for dielectric constant (along x, y 
> and z axis), so should I take average of these three and then plot it vs 
> frequency?
> On 09/16/2016 06:09 PM, Andrea Ferretti wrote:
>> Dear Adnan,
>> after a successful epsilon.x run a number of files are dumped to disk.
>> Among them you find epsi_$prefix.dat, which contains the imaginary part of
>> the dielectric function.
>> take care
>> Andrea
>>> May I like to ask you guys that how can I plot the imaginary part of
>>> dielectric function, obtained after running epsilon.x?
>>> waiting for response.
>>> Thank you
>>> Adnan
>>> Bilkent U. Ankara
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Andrea Ferretti, PhD
S3 Center, Istituto Nanoscienze, CNR
via Campi 213/A, 41125, Modena, Italy
Tel: +39 059 2055322;  Skype: andrea_ferretti
URL: http://www.nano.cnr.it

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