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band selection in construct_kdotp part #114

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tpyang opened this issue Jun 9, 2022 · 1 comment
Open

band selection in construct_kdotp part #114

tpyang opened this issue Jun 9, 2022 · 1 comment

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@tpyang
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tpyang commented Jun 9, 2022

In the function MODEL_TB.construct_kdotp(k_star, order=2), the program will construct the kp model with same band number as the given TB model.

Is it possible to construct a kp model with much less band number, for example 3 bands around Gamma from a multy-band W90 model?

Thank you very much,
Yang
@greschd
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greschd commented Jun 9, 2022 •
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No, TBmodels doesn't contain an implementation for such a disentanglement routine. The current TB -> k.p conversion is just a straightforward Taylor expansion.

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@greschd @tpyang