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deploy: ffcd8f8
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jkshenton committed Sep 16, 2024
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6 changes: 3 additions & 3 deletions workshop/02_bands_dos/index.html
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Expand Up @@ -2982,8 +2982,8 @@ <h2 id="example-files">Example files:</h2>
<h2 id="example-1-graphite">Example 1 - Graphite.</h2>
<p>Move into the graphite directory, look at the CASTEP .cell and .param files and notice the differences from the previous single point energy runs.</p>
<p>To the .param file the task (which lets CASTEP know what you want it to do) needs to be changed to:
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a>task spectral
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a>spectral_task bandstructure
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a>task : spectral
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a>spectral_task : bandstructure
</code></pre></div></p>
<p>The .cell file requires a path through the Brillouin Zone along which you want the bandstructure to be plotted:</p>
<p><div class="highlight"><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a>%BLOCK spectral_kpoint_path
Expand Down Expand Up @@ -3031,7 +3031,7 @@ <h2 id="irons-density-of-states">Iron's Density of States</h2>
<div class="highlight"><pre><span></span><code><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a>SPECTRAL_KPOINT_MP_GRID 12 12 12
</code></pre></div>
<p>Run CASTEP using these new input files then use the dos.pl plotting script</p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a>castep-mpi dos.pl -xg -bs -w 0.2 Fe.bands
<div class="highlight"><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a>castep-serial dos.pl -xg -np -w 0.2 Fe.bands | xmgrace -
</code></pre></div>
<p>Can you relate the features in the DOS to those in the Bandstructure?</p>
<p>You might find the <code>-mirror</code> option useful. The <code>-w</code> option sets the Gaussian broadening in eV. Try smaller (0.05) and larger (0.5) values - explain what you see.</p>
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