5.41.1. xc.lda_c_chachiyo_mod.chachiyo_scaling_mod

eminus.xc.lda_c_chachiyo_mod.chachiyo_scaling_mod(zeta)

Weighting factor between the paramagnetic and the ferromagnetic case.

Reference: Comput. Theor. Chem. 1172, 112669.

Parameters:

zeta – Relative spin polarization.

Returns:

Weighting factor and its derivative.