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How to Post process the generated SIESTA output file to get the E-k in different directions .

My goal is to extract effective mass tensors that can be used for investigating elctronic properties.

The information already exists as all plots banndstructure, DOS etc is calculated from it,

But how to get four columns kx,ky, kz and corresponding E for conduction and valence band to quantitatively evaluate the effective mass tesnors

Thanks.

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David Strubbe@ onLook at the file "SIESTA output". The last section contains the list of k-points used for the band structure, under "Band k vectors," and then a list, for each band, of the k-point indices and corresponding energies. What you are looking for is just a rearrangement of this data.

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