dissociation rate

Deals with issues related to computation of optical spectra, in RPA (-o c) or by solving the Bethe-Salpeter equation (-o b). Includes local field effects, excitons, etc.

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karimmov
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Joined: Thu Oct 24, 2019 12:16 pm

dissociation rate

Post by karimmov » Sun Nov 24, 2019 11:24 am

Dear All,

I want to know if there is a way to calculate the dissociation rate ( or the inverse resonance lifetime). I am working on a 2D material under an applied in- electric field.

Thanks a lot before.

Karimmov
Karim Rezouali
Department of Physics
University of Bejaia, 06000,
Bejaia, Algeria

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Daniele Varsano
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Re: dissociation rate

Post by Daniele Varsano » Sun Nov 24, 2019 4:46 pm

Dear Karimmov,
please sign your posts with your name and affiliation, this is a rule of the forum and you can do once for all by filling it in your user profile.
In Yambo, in principle, it is possible to calculate exciton lifetime (see e.g. Palummo et al. NanoLett 2015), but this development it is not yet present in the GPL release.
Best,
Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

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claudio
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Re: dissociation rate

Post by claudio » Mon Nov 25, 2019 9:16 am

Dear Karimmov

have a look to this paper:
https://journals.aps.org/prb/abstract/1 ... .94.041401

probably you can try to fit yambo results with their model to get the dissociation rate

best
Claudio
Claudio Attaccalite
[CNRS/ Aix-Marseille Université/ CINaM laborarory / TSN department
Campus de Luminy – Case 913
13288 MARSEILLE Cedex 09
web site: http://www.attaccalite.com
Freely download scientific books from: http://www.freescience.info

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Daniele Varsano
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Re: dissociation rate

Post by Daniele Varsano » Mon Nov 25, 2019 10:12 am

Dear Karimov,
Claudio is right, what I was referring to in my previous post was about radiative lifetime which is not related to what you are asking for.
Best,
Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

karimmov
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Joined: Thu Oct 24, 2019 12:16 pm

Re: dissociation rate

Post by karimmov » Mon Nov 25, 2019 6:53 pm

Thank you Daniele and Claudio for the help.
Karim Rezouali
Department of Physics
University of Bejaia, 06000,
Bejaia, Algeria

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