[Wien] Bandgap values in hybrid calculations.
Serhat Ayık
aserhatayik at gmail.com
Tue Dec 29 13:11:54 CET 2020
Dear wien2k users,
I calculated the energy band gap values using the hybrid function (YS-PBE0).
The k-point value in one calculation is 4 * 4 * 4, in another calculation
is 6 * 6 * 6.
I wrote the nband number as occupied+1 in both calculations.
The energy band gap in the second calculation, where the k-point 6 * 6 * 6,
turned out to be closer to the experimental data. (calc. : 2.9eV, exp.:
3.1ev)
What should I do to approximate the energy band gap values I find in hybrid
calculations to experimental data?
Should I increment the k-point or the number of nbands?
Best regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://zeus.theochem.tuwien.ac.at/pipermail/wien/attachments/20201229/2ac7fbbe/attachment.htm>
More information about the Wien
mailing list