I am using the spin scaling option to reduce the spin polarization in an antiferromagnetic calculation. I tried xc1 = 0 in both LDA and GGA, but only GGA gives zero magnetic moment. We know that with xc1 = 0, the magnetic part of the exchange correlation functional vanishes (equation 11 in Ortenzi et al. 2012), so the system should become non-magnetic. Do you know what is going on with the spin scaling in LDA?
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