Dear Dr. Steven and users, I am dealing with a polymer whose dielectric permittivity has about 30 lorentz oscillators, making it highly dispersive. Hence, I am unable to calculate the bandgaps directly using MPB.
While an old post dating to 2006, http://www.mail-archive.com/mpb-discuss%40ab-initio.mit.edu/msg00040.html, suggests a way of dealing with this issue, I am unable to proceed. (1) Please let me know if there is a way to solve for the bandgap of dispersive materials in the new versions. (2) If someone in group has worked on this issue before, kindly reply. Thank you, Sincerely, Chan -- Chandraprakash
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