! use ADMM
    &AUXILIARY_DENSITY_MATRIX_METHOD
      ! recommended, i.e. use a smaller basis for HFX
      ! each kind will need an AUX_FIT_BASIS_SET.
      METHOD BASIS_PROJECTION
      ! recommended, this method is stable and allows for MD. 
      ! can be expensive for large systems
      ADMM_PURIFICATION_METHOD MO_DIAG
    &END