It is currently Fri Aug 23, 2019 2:12 am

Tell a friend!


Post new topic Reply to topic  [ 3 posts ] 
analysis of phonon DOS/alpha2f with 'mode of vibration' 
Author Message

Joined: Thu Aug 03, 2017 1:23 pm
Posts: 30
University: panjab univ
Post analysis of phonon DOS/alpha2f with 'mode of vibration'
Dear roxana,

While comparing phonon DOS and Eliasberg spectral function :: how do we know "which part of the curve represent which mode of vibration" ?. If the "mode of vibration" is optical or acoustic or is a component of these two.

Thanks in advance

regards
topgun


Sun Jan 20, 2019 8:32 am
Profile E-mail

Joined: Fri Jan 22, 2016 6:48 pm
Posts: 125
University: SUNY-Binghamton
Post Re: analysis of phonon DOS/alpha2f with 'mode of vibration'
Hi,

The acoustic phonons are the three lowest branches with zero frequency at the G-point. If you plot also the phonon dispersion, you can follow the acoustic modes and understand up to which frequency these branches go and get an idea about their contribution to the phonon DOS and Eliashberg spectral function.

Best,
Roxana

_________________
Roxana Margine
Assistant Professor
Department of Physics, Applied Physics and Astronomy
Binghamton University, State University of New York
PO Box 6000
Binghamton, NY 13902-6000


Fri Feb 01, 2019 12:53 am
Profile

Joined: Thu Aug 03, 2017 1:23 pm
Posts: 30
University: panjab univ
Post Re: analysis of phonon DOS/alpha2f with 'mode of vibration'
Dear roxana maam,

Thank you for the reply.
But, is there any way by which I can know the components of (say) acoustic phonons or optical phonons in the phonon DOS and eliasberg function plots. i.e Longitudinal and transverse acoustic phonons [ LA and TA phonons].

THANKS IN ADVANCE

regards
topgun


Fri Feb 08, 2019 11:44 am
Profile E-mail
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron
Powered by phpBB © phpBB Group.
Designed by Vjacheslav Trushkin

(All content on this board is governed by and is the sole responsibility of the board administrator.)


Gratis forum Free forum hosting| gratis phpbb3 forum | phpbb3 styles