Search found 3 matches

by lxs234
Tue Apr 01, 2014 10:40 am
Forum: VTSTTools
Topic: frequency at saddle point
Replies: 0
Views: 21394

frequency at saddle point

Hi everyone,
I am studying the solute (Al, Si, Ge, Ga, In, In) diffusion in hcp Ti using 8 frequency model.
for each jumps i have found the transition state using NEB with a 3x3x3 (54atom) supercell and calculated the frequency using IBRION=5.
However, for the jump frequency of the solvent where it ...
by lxs234
Sun Mar 09, 2014 3:44 pm
Forum: VTSTTools
Topic: No Imaginary frequency
Replies: 1
Views: 7637

Re: No Imaginary frequency

does anyone study diffusion in hcp-Ti and have the some problem?

thank you

Lucia
by lxs234
Tue Mar 04, 2014 11:54 am
Forum: VTSTTools
Topic: No Imaginary frequency
Replies: 1
Views: 7637

No Imaginary frequency

Hello everyone,

I am calculating the pre-factor of self-diffusion and solute in hcp Ti, I did the CI-NEB calculation to find the activation energy and then I calculate the frequencies at the saddle point using IBRION 5 and the CONTCAR obtained by the NEB calculations. I was expecting two real ...