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<p>Dear Bipin,</p>
<p>First of all, I guess you have a typo in the message subject,
example 18 is about anomalous Hall conductivity (AHC), not spin
Hall. <br>
</p>
<p>Usually AHC needs a dense grid of k-points to converge, most
probably the grid 25x25x25 form example18 is too far from
convergence. With a more dense grid you will get a reasonable
result.<br>
</p>
<p>If you calculate AHC for a series of Fermi levels (using
parameters fermi_energy_min, fermi_energy_max, fermi_energy_step)
, you will see huge spikes in the curve, which will disappear for
a dense curve, smth like this:
<a class="moz-txt-link-freetext" href="http://wannier-berri.org/exampleFe.html#id9">http://wannier-berri.org/exampleFe.html#id9</a></p>
<p>You may also check the WannierBerri code, which is much faster
for AHC and some other calculations. <br>
</p>
<p>Regards,</p>
<p>Stepan.<br>
</p>
<div class="moz-cite-prefix">On 26.10.20 18:12, Bipin Lamichhane
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CA+LLEc=1s5WgzJqfpv7f+y-_TFQd_Wqjcb2Y7=R2s6pzXg1KcA@mail.gmail.com">
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<div>Dear wannier users,</div>
<div>I am trying to complete example18 of the wannier tutorial
but I got some errors if I do not specify fermi energy in the
.win file. The error is '' Must specify one or more Fermi
levels when berry=true''. Now When I specify fermi energy as
fermi_energy = [value], I get very high Hall conductivity
along Z-direction and there are some in x and y directions. If
anyone has done this problem, please help me to figure out
this issue. Thank You.</div>
<div><br>
</div>
<div><br>
</div>
<div>Sincerely,</div>
<div>Bipin <br>
</div>
</div>
<br>
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