Search found 4 matches

by bruno14
Thu Dec 01, 2011 4:25 pm
Forum: Response calculations
Topic: phonons in wurtzite
Replies: 6
Views: 4707

Re: phonons in wurtzite

Dear Dr. jzwanzig, As you can see in the input file, I had changed in qph1l the coordinates for the high symmetry points and I kept those of the the points situated in each segment and corresponding to the cubic structure. I wonder I am correct? If not how can I calculate them? Thanks in advance, N....
by bruno14
Thu Dec 01, 2011 1:56 pm
Forum: Response calculations
Topic: phonons in wurtzite
Replies: 6
Views: 4707

Re: phonons in wurtzite

Dear Users, After I modified the trf2_5.in from cubic to wurtzute structure, I obtained a strange plott of the frequencies, Did someone get this problem before? here is attached my input file: !Input file for the anaddb code. Analysis of the SiO2 DDB !Flags ifcflag 1 ! Interatomic force constant fla...
by bruno14
Mon Nov 21, 2011 9:34 pm
Forum: Response calculations
Topic: phonons in wurtzite
Replies: 6
Views: 4707

Re: phonons in wurtzite

Many thanks for your reply.......the website is very helpful.
by bruno14
Mon Nov 21, 2011 2:39 pm
Forum: Response calculations
Topic: phonons in wurtzite
Replies: 6
Views: 4707

phonons in wurtzite

Dear Users,

This is the first time I deal with plotting phonons frequencies in wurtzite structure and I need the coordinates of the high symmetry points for the hexagonal
path ,
I'd appreciate your help,
N.Bruno