artificial absorption of Si

[will]

Dear all,
I'm learning to calculate the absorption coefficient of Si with Yambo.But the result at low energy is unsatisfactory, that is, there should no absorption.How to avoid it?Any parameters related to that?My result and input file are attached.Thanks
Best wishes,
Will

[Daniele Varsano]

Dear Will,
your input file is incorrect and most probably yambo is not reading it properly:
the damping range namelist it is not closed:

Code: Select all

% DmRngeXd
 |   0.10000 |  0.30000 | eV    # [Xd] Damping range

and it shoul be:

Code: Select all

% DmRngeXd
   0.10000 |  0.30000 | eV    # [Xd] Damping range
%

in any case, in general please post also the report file, as it is easier to understand what is happening.

Best,

Daniele