LSFBXC
LSFBXC = .TRUE. | .FALSE.
Default: LSFBXC = .FALSE.
Description: Removes sources and drains from the exchange-correlation B field.
With LSFBXC=T, the sources and drains are removed from the exchange-correlation (XC) B field[1] at each step of the electronic minimization. Thus, any XC potential can be constrained to correspond to a Maxwellian magnetic field at the cost of becoming a potential-only XC functional, since there is no correction applied to the XC energy.