Search found 7 matches

by kanagaraj
Wed Jul 27, 2011 7:22 am
Forum: Response calculations
Topic: Problem in Response function calculation - 1
Replies: 0
Views: 1711

Problem in Response function calculation - 1

Dear All, I am new to Abinit. I am trying to calculate the response function calculation1 for CuCl2 system. I modified the tutorial input file trf1_5.in based on my system. But i encountered with some problem like this: Initialisation of the first-order wave-functions : ireadwf= 0 wfconv : 20 bands ...
by kanagaraj
Thu Jul 14, 2011 1:15 pm
Forum: Response calculations
Topic: Run Time error
Replies: 0
Views: 1810

Run Time error

Dear All, I am trying to calculate the phonon spectrum of the CuCl2 (monoclinic C2/m) system. I changed the tutorial response fns input files trf2_1.in, trf2_2.in and trf2_5.in based on requirement of my system.It works well. I got the frequency file, in that some negative values values also there. ...
by kanagaraj
Sat Jul 09, 2011 3:33 pm
Forum: Response calculations
Topic: phonon spectrum
Replies: 1
Views: 2250

phonon spectrum

Dear All, i am trying to calculate phonon band structure for the CuCl2 system using Abinit v.6.4.2.. i want to know about, how to calculate nph1l, qph1l and how to define the gamma, K,X,gamma pts etc in the trf2_5.in file. The values of qph1l are: qph1l 0.0000 0.0000 0.0000 1.0 !(gamma point) 0.0375...
by kanagaraj
Sat Jul 09, 2011 1:22 pm
Forum: Response calculations
Topic: phonon spectrum:Fortran run time error
Replies: 1
Views: 2503

phonon spectrum:Fortran run time error

Dear All, i am doing phonon spectrum calculation for the CuCl2 system in the Abinit v.6.4.2.. After ran the phonon band structure as in trf2_5.in, i modified and ran the trf2_6.in file as the band2eps < trf2_6.files > trf2_6.log for my system. At that time i encountered the problem like this: At lin...
by kanagaraj
Tue Jul 05, 2011 6:51 am
Forum: Response calculations
Topic: problem in phonon spectrum
Replies: 0
Views: 1579

problem in phonon spectrum

Hi All I am new to Abinit. I am doing phonon calculations for the Cl based system. Based on the input file given in tutorial, i modified for my system. I encountered the error like this. occeig : ERROR - In a non-metallic case (occopt<3), for a RF calculation, if the eigenvalues are degenerate, the ...
by kanagaraj
Thu Jun 02, 2011 12:47 pm
Forum: Ground state
Topic: symmetry finder , chkprim with multiplicity of unit cell
Replies: 0
Views: 1558

symmetry finder , chkprim with multiplicity of unit cell

Hi i am new to abinit. I have problem in structural optimization like this: chkprimit : ERROR - According to the symmetry finder, the unit cell is NOT primitive. The multiplicity is 4 . The use of non-primitive unit cells is allowed only when the input variable chkprim is 0. Action : either change y...
by kanagaraj
Thu Jun 02, 2011 9:55 am
Forum: Link to other codes
Topic: GGA PAW Pseudopotentia lfile for Cl
Replies: 0
Views: 2244

GGA PAW Pseudopotentia lfile for Cl

Hi

Can any one provide me the GGA PAW Pseudopotential file or tell me where i can get the GGA PAW pseudopotential to run the GGA+U calculations for the Cl based system.

Thanks

C.Kanagaraj
Research Scholar
NIT - Trichy