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[asubedi <asubedi@gmail.com>]

Dear all,

I successfully did the tutorial described in lesson_elphon.html. Since
then I have been trying to calculate coupling constant for some
semiconductors without much success. When using anaddb, it gives an
error saying that determinant of the dielectric matrix is 0. I have
attached my input files for the case of AlAs. I would be very thankful
if someone told me the main differences between metal and
semiconductor while doing electron-phonon calculation.

Another question, what does natifc do when it is 0 and there are
values for atifc?

Thank you,
Alaska Subedi

Attachment: AlAs_elphon_1.in
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Attachment: AlAs_elphon_4.in
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