Re: [Wien] Error during abc & gamma (4D) optimization of a monoclinic system

2020-08-24 Thread Gavin Abo
The 4D is option 7 [ https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg04931.html , https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg14255.html ]: [7] VARY A, B, C and Gamma (4D-case) (monoclinic lattice) I think that only worked correctly when the gamma angle

Re: [Wien] Lattice thermal conductivity

2020-08-24 Thread Peeyush Kumar Kamlesh
Thank you Prof. Gavin. On Sun, Aug 23, 2020 at 10:33 PM Peeyush Kumar Kamlesh < peeyush.physik@gmail.com> wrote: > Hello everyone! > Greetings of the day! > Please suggest any package by which I can calculate lattice thermal > conductivity using WIEN2k. > > best regards >

Re: [Wien] Lattice thermal conductivity

2020-08-24 Thread Gavin Abo
As far as I currently know, no one has implemented a lattice thermal conductivity calculation for WIEN2k and made software for it available in the public domain yet. Though, it has been done with other DFT software such as VASP [1] and Quantum Espresso (QE) [2,3] by interfacing it with

Re: [Wien] Error during abc & gamma (4D) optimization of a monoclinic system

2020-08-24 Thread shamik chakrabarti
Dear Prof. Gavin, If I change a to b, b to c & c to a to make alpha to beta, beta to gamma & gamma to alpha the produced structure shows unphysical RMTs for all the atoms.: 1 for Nb & 0.51 for Se. What to do? with regards, On Mon, 24 Aug 2020 at 16:07, Gavin Abo wrote:

Re: [Wien] Error during abc & gamma (4D) optimization of a monoclinic system

2020-08-24 Thread Laurence Marks
You have to also change the positions, and symmetry of course! _ Professor Laurence Marks "Research is to see what everybody else has seen, and to think what nobody else has thought", Albert Szent-Gyorgi www.numis.northwestern.edu On Mon, Aug 24, 2020, 07:29 shamik chakrabarti wrote: >

[Wien] Berrypi & w2w

2020-08-24 Thread Laurence Marks
Does anyone know if berrypi /w2w require a 3D k-mesh, e.g. what will happen with a surface calculation where along the long direction there is only one k-point? -- Professor Laurence Marks Department of Materials Science and Engineering Northwestern University www.numis.northwestern.edu

Re: [Wien] Berrypi & w2w

2020-08-24 Thread Peter Blaha
I'd guess that for an insulator this is not a problem. It would be problematic for metals, but berrypi is not for metals anyway. Am 24.08.2020 um 19:52 schrieb Laurence Marks: Does anyone know if berrypi /w2w require a 3D k-mesh, e.g. what will happen with a surface calculation where along the

Re: [Wien] Interstitial DOS for SOC calculation

2020-08-24 Thread Peter Blaha
With non-spinpolarized spin-orbit coupling you have always at least 2-fold degenerate states. Only the sum of the partial charges of both degenerate states is a relevant quantity, but the partial charges of one of the 2 eigenvalues have no particular meaning. Since we usually calculate the

Re: [Wien] Error during abc & gamma (4D) optimization of a monoclinic system

2020-08-24 Thread shamik chakrabarti
Dear Prof. Laurence Marks Sir, I have changed the atomic coordinates & reduced the symmetry to 1_P with the help of the Bilbao crystallographic server. The calculation is still running & 3 structures are already generated without showing any error.

[Wien] Interstitial DOS for SOC calculation

2020-08-24 Thread Falke, Johannes
I have a converged non-spin-polarized calculation using HF and SO. I calculated the QTL file using "x lapw2 -qtl -hf -so -p". I then calculate the DOS using "x tetra -hf -so -p". However, this results in the interstitial DOS* being larger than the total DOS, which shouldn't be happening

Re: [Wien] Berrypi & w2w

2020-08-24 Thread Rubel, Oleg
Technically, it should work even with 1x1x1 mesh. The loop is closed in k space through periodic boundary conditions. For a surface, x1 mesh in the perpendicular direction should be sufficient. Oleg From: Wien on behalf of Peter Blaha Sent: Monday,

Re: [Wien] Berrypi & w2w

2020-08-24 Thread Rubel, Oleg
P.S.: I tested spontaneous polarization in BaTiO3. With 1x1x1 k mesh we have Ps = 0.297 C/m2 vs the "good" result from 6x6x6 mesh of 0.305 C/m2. The difference is not that huge. Oleg From: Wien on behalf of Rubel, Oleg Sent: Monday, August 24, 2020