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General Questions and Answers / Re: VNL as Quantum Espresso frontend
« on: January 25, 2016, 05:53 »
Thank you very much.
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General Questions and Answers / Re: VNL as Quantum Espresso frontend
« on: January 20, 2016, 12:35 »
Dear Jess
Thank you very much. My problem is now solved.
I am new user of VNL. Is it possible to use VNL for finding high symmetry points coordinates? I can go to the Builder and then choose Brillouin Zone viewer. It draws Wigner Seitz cell and shows the high symmetry points in green. I need the coordinate of shown points but I cannot view the numerical valuse of that points in k-space. Some points like X, Gamma and L can be guessed visually but it is impossible to guess W point coordinate in FCC lattice visually.
Sincerely Yours
Parham
Thank you very much. My problem is now solved.
I am new user of VNL. Is it possible to use VNL for finding high symmetry points coordinates? I can go to the Builder and then choose Brillouin Zone viewer. It draws Wigner Seitz cell and shows the high symmetry points in green. I need the coordinate of shown points but I cannot view the numerical valuse of that points in k-space. Some points like X, Gamma and L can be guessed visually but it is impossible to guess W point coordinate in FCC lattice visually.
Sincerely Yours
Parham
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General Questions and Answers / Re: VNL as Quantum Espresso frontend
« on: January 17, 2016, 10:19 »
Dear Jess
First, pardon me for the typing errors in my last post.
Second, I am looking for the update to Quantum Espresso plugin impatiently.
Third, I attached scf.in, scf.out, bs.in and bs.out to this post. You are expert and you already know that the bands calculations should be done around high symmetry points. I should substitue the W point with M point in reciprocal space but I didn't since I am stopped watching density isosurfaces after scf calculations.
I really need your advice on making progress using VNL QE plugin.
Look to hear from you
Sincerely Yours
Parham
First, pardon me for the typing errors in my last post.
Second, I am looking for the update to Quantum Espresso plugin impatiently.
Third, I attached scf.in, scf.out, bs.in and bs.out to this post. You are expert and you already know that the bands calculations should be done around high symmetry points. I should substitue the W point with M point in reciprocal space but I didn't since I am stopped watching density isosurfaces after scf calculations.
I really need your advice on making progress using VNL QE plugin.
Look to hear from you
Sincerely Yours
Parham
4
General Questions and Answers / VNL as Quantum Espresso frontend
« on: January 9, 2016, 07:01 »
Hello
I am trying to use VNL as the frontend to Quantum Espresso. It works fine with the cubic lattices . I successfully reproduced tutorial results on silicon. I did a whole new work with GaAs. I did the same with zincblende CdSe. Unfortunately my experience with wurtzite CdSe failed. The lattice is hexagonal and ibrav=4 for this case while for the all previous was ibrav=2. The Quantum Espresso analyze the inputs but I cannot do the Grid operations with scf output or plolt the bandstructure afte band calculation of QE. The Grid operations pops up an error screen that cannot map (30,30) array into (30,48) array and the bandstructure is completely black.
Am I should change some setting to recover the issue or this VNL feature is not yet complete to cover the hexagonal latticess?
Sincerely Yours
Parham
I am trying to use VNL as the frontend to Quantum Espresso. It works fine with the cubic lattices . I successfully reproduced tutorial results on silicon. I did a whole new work with GaAs. I did the same with zincblende CdSe. Unfortunately my experience with wurtzite CdSe failed. The lattice is hexagonal and ibrav=4 for this case while for the all previous was ibrav=2. The Quantum Espresso analyze the inputs but I cannot do the Grid operations with scf output or plolt the bandstructure afte band calculation of QE. The Grid operations pops up an error screen that cannot map (30,30) array into (30,48) array and the bandstructure is completely black.
Am I should change some setting to recover the issue or this VNL feature is not yet complete to cover the hexagonal latticess?
Sincerely Yours
Parham
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