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Tip revision: 892697b4c15da5cbbd09fb13726f82d246ae2b6f authored by Uthpala Herath on 14 April 2020, 20:41:07 UTC
Added feature to filter spin up and spin down bands in colinear spin calculations
Tip revision: 892697b
kmesh.html


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  <div class="section" id="k-mesh-generator">
<span id="labelkmesh"></span><h1>k-mesh generator<a class="headerlink" href="#k-mesh-generator" title="Permalink to this headline">¶</a></h1>
<p>This utility can be used to generate a 2D <span class="math notranslate nohighlight">\(k\)</span>-mesh centered at a given <span class="math notranslate nohighlight">\(k\)</span>-point and in a given <span class="math notranslate nohighlight">\(k\)</span>-plane. This is particularly useful in computing 2D spin-textures and plotting 2D Fermi-surfaces. For example, the following command creates a 2D <span class="math notranslate nohighlight">\(k_{x}\)</span>-<span class="math notranslate nohighlight">\(k_{y}\)</span> -mesh centered at the <span class="math notranslate nohighlight">\(\Gamma\)</span> point (<span class="math notranslate nohighlight">\(k_{z}= 0\)</span>) ranging from coordinates (-0.5, -0.5, 0.0) to (0.5, 0.5, 0.0) with 5 grids in the x direction and 7 grids in the y direction:</p>
<p>General format:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pyprocar</span><span class="o">.</span><span class="n">generate2dkmesh</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span><span class="n">y1</span><span class="p">,</span><span class="n">x2</span><span class="p">,</span><span class="n">y2</span><span class="p">,</span><span class="n">z</span><span class="p">,</span><span class="n">num_grids_x</span><span class="p">,</span><span class="n">num_grids_y</span><span class="p">)</span>
</pre></div>
</div>
<p>Usage:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pyprocar</span><span class="o">.</span><span class="n">generate2dkmesh</span><span class="p">(</span><span class="o">-</span><span class="mf">0.5</span><span class="p">,</span><span class="o">-</span><span class="mf">0.5</span><span class="p">,</span><span class="mf">0.5</span><span class="p">,</span><span class="mf">0.5</span><span class="p">,</span><span class="mi">0</span><span class="p">,</span><span class="mi">5</span><span class="p">,</span><span class="mi">7</span><span class="p">)</span>
</pre></div>
</div>
<p>This information is automatically written to a KPOINTS file.</p>
<span class="target" id="module-pyprocar.scriptKmesh2D"></span><dl class="function">
<dt id="pyprocar.scriptKmesh2D.generate2dkmesh">
<code class="sig-prename descclassname">pyprocar.scriptKmesh2D.</code><code class="sig-name descname">generate2dkmesh</code><span class="sig-paren">(</span><em class="sig-param">x1</em>, <em class="sig-param">y1</em>, <em class="sig-param">x2</em>, <em class="sig-param">y2</em>, <em class="sig-param">z</em>, <em class="sig-param">nkx</em>, <em class="sig-param">nky</em><span class="sig-paren">)</span><a class="headerlink" href="#pyprocar.scriptKmesh2D.generate2dkmesh" title="Permalink to this definition">¶</a></dt>
<dd><p>This module generates a KPOINTS mesh file for 2D plotting.</p>
</dd></dl>

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