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Dear Baidya,
<div class="">To properly compute the relaxation time, you need to consider what are the scattering contributions (e.g. electron-phonon, …) and compute the scattering time with a code that can consider these effects. </div>
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<div class="">Note that the constant-relaxation time (as implemented in BoltzWann) is a very crude approximation, more generally you will get a time that depends on the band and kpoint. If you get this information, extending the BoltzWann code to consider a
(n,k)-dependent relaxation time should be relatively straightforward.</div>
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<div class="">Best,</div>
<div class="">Giovanni</div>
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<div class="">On 5 Sep 2018, at 04:14, S Baidya <<a href="mailto:santubaidya2009@gmail.com" class="">santubaidya2009@gmail.com</a>> wrote:</div>
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<div class="">Dear wannier90 users,<br class="">
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I am doing thermal conductivity calculation with Boltzwann interface using wannier90. I see that to calculate thermal properties one needs to provide a relaxation time. In the tutorial examples relaxation time is given as 10 fs. But for different materials
relaxation time should not be same. So, can anyone tell me if the code works with any relaxation time or how should I get the relaxation time to calculate right thermal properties.<br class="">
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Any suggestions would be appreciated.<br class="">
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Thank you,<br class="">
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Santu Baidya<br class="">
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Seoul National University<br class="">
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-- <br class="">
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<p dir="ltr" class="">-----sent from galaxy 6------</p>
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