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Mobility Results Mismatch

Posted: Sat Aug 23, 2025 3:06 pm
by Agathyan
Dear All,
I calculated Si mobility via EPW Summer School 2018 tutorial (Resistivity and Mobility) using a 100x100x100 k/q-mesh. Though the profile match, the amplitudes don’t match the tutorial. Kindly help me match the result (from paper: https://arxiv.org/abs/1803.05462)

Attached:

1. My result
si_mobility_100.jpg
si_mobility_100.jpg (150.45 KiB) Viewed 1860 times
2. Tutorial result
Screenshot from 2025-08-21 19-28-56.png
Screenshot from 2025-08-21 19-28-56.png (118.79 KiB) Viewed 1860 times
3. Inputs
Inputs.zip
(83.37 KiB) Downloaded 18 times

Re: Mobility Results Mismatch

Posted: Tue Aug 26, 2025 8:24 pm
by stiwari
Hello,

To match results in https://arxiv.org/abs/1803.05462, you need to converge your calculations with respect to both coarse k-q grids (nk, nq in epw calculations) and fine k-q grids.

To converge calculations for Si, you can use the input files provided with the manuscript here:https://journals.aps.org/prresearch/abs ... h.3.043022. You can find the inout files in materials cloud archive here:https://archive.materialscloud.org/records/n1bqf-t7441.

Best regards,
Sabya.