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<p>Greetings,</p>
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<p>I would like to calculate "Im(Eps)" for a custom k-mesh. My band structure contains linear intersections, which are simply overlooked by the Optics module, so I want to create a mesh, which is denser around those intersections. </p>
<p>I'm able to define my custom k-mesh just fine, but the case.kgen file has a structure that I do not understand. According to the user guide, it is used to define tetraeders. Not using the TETRA switch in case.in2c will let me calculate "x lapw2 -fermi" without
having any case.kgen file (which otherwise throws an error), but I get stuck now at "x joint", which requires a properly defined case.kgen file again.</p>
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Is there a command to generate the tetraeders for my custom mesh? Wien2k only gives me the option to execute "x kgen", which defines both the mesh and the tetraeders.</p>
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<p>Kind regards,</p>
<p>Sascha Polatkan.</p>
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