Search found 36 matches

by topgun
Sat Jan 21, 2023 11:56 am
Forum: General discussion
Topic: theory related to Fermi nesting function
Replies: 2
Views: 3178

Re: theory related to Fermi nesting function

I meant "theory" related to Fermi nesting function.

TOPGUN
by topgun
Sat Dec 24, 2022 5:12 am
Forum: Theory
Topic: theory related to Fermi nesting function
Replies: 0
Views: 20067

theory related to Fermi nesting function

Dear Roxana & Ponce,

can Roxana or Ponce refer the "theory related to Fermi nesting function". Any publication where " Fermi nesting function" is either plotted or discussed would be greatly appreciated.

Thanks in advance.

TOPGUN
by topgun
Tue Dec 20, 2022 1:08 pm
Forum: General discussion
Topic: theory related to Fermi nesting function
Replies: 2
Views: 3178

theory related to Fermi nesting function

Dear all,
can the developers refer the "theory related to Fermi nesting function". Any publication where " Fermi nesting function" is either plotted or discussed would be greatly appreciated.

Thanks in advance.

TOPGUN
by topgun
Mon Jul 11, 2022 2:47 am
Forum: General discussion
Topic: equations of state for Pressure Vs Volume
Replies: 0
Views: 3405

equations of state for Pressure Vs Volume

Dear all,
How do we choose: which "equations of state" suits my material for "pressure vs volume plot".
e.g. Murnaghan EOS OR Birch-Murnaghan EOS OR Birch-Murnaghan. How do one decide which is most suitable.

TOPGUN
by topgun
Sat Mar 06, 2021 2:11 pm
Forum: General discussion
Topic: about mu* pseudo potential
Replies: 2
Views: 3018

Re: about mu* pseudo potential

Dear Roxana ma'am,
Thank you for the suggestions. These were really helpful.

Regards
TOPGUN
by topgun
Fri Feb 26, 2021 8:40 pm
Forum: General discussion
Topic: about mu* pseudo potential
Replies: 2
Views: 3018

about mu* pseudo potential

Dear Roxana and ponce, How do we take the value of mu* if we are to predict the transition temperature of a superconductor which does not exist and hence its experimental Tc is unknown. when the experimental value of is Tc known, we can just adjust the value of mu* to calculate the right Tc. but whe...
by topgun
Sun Apr 21, 2019 8:46 am
Forum: General discussion
Topic: query about discontinous curves
Replies: 0
Views: 4191

query about discontinous curves

dear all,

while trying to find the (alpha)^2 , I have obtained a 0/0 data point (undefined) in my graph i.e a discontinuity in my continuous graph. what is the way out of it.

thanks in advance.

topgun
by topgun
Thu Mar 21, 2019 5:26 am
Forum: General discussion
Topic: query about potential mixing
Replies: 0
Views: 3982

query about potential mixing

Dear all, What is potential mixing? If for example we take GGA [for our calculations in input file] does the potential remains same in character like GGA [or total potential] or evolve into something else after potential mixing. Does 'potential mixing' happen in DFPT based calculations. Thanks in ad...
by topgun
Fri Feb 08, 2019 11:44 am
Forum: General discussion
Topic: analysis of phonon DOS/alpha2f with 'mode of vibration'
Replies: 2
Views: 3175

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
by topgun
Sun Jan 20, 2019 8:32 am
Forum: General discussion
Topic: analysis of phonon DOS/alpha2f with 'mode of vibration'
Replies: 2
Views: 3175

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