<p>Dear
developers</p>
<p>I’m
writing to ask for your help with SCF convergence issues. I have been trying to
run an SCF calculation with a Co2(II)Mo3(IV)O8 (110) 2-layer slab model Owning
to the low zero bandgaps (Co2(II)Mo3(IV)O8 one of the most important conductive
metal oxide), I selected diagonalization as convergence algorithm. However,
this calculation is not converged. Could you please explain the reasons? I try
to use diagonalization before with smearing at 300 K and 1000 K electronic
temperature but it doesn’t work. I tried all mixing methods, I found the
KERKER_MIXING is a relatively better choice. But, the convergence of this
calculation also cannot reach the desired value (1.0E-6), and only 0.0007 can
be reached. I tried to change the value of ALPHA, but it also doesn’t work. The
SCF cycle never converges. I believe there are problems with my input. Could
someone give me some suggestions? </p>
<p>I
would very much appreciate it if you could give some advice or feedback on my
input files (enclosed).</p>
<p> </p>
<p>Thank
you in advance for your help.</p>
<p> </p>
<p>Sichi
Yi</p>
<p>Chongqing
University</p>