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We calculate the tunneling conductance spectra of a ferromagneticmetal/insulator/superconductor using the Blonder-Tinkham-Klapwijk (BTK)formulation. Two possible states for the superconductor are considered with thetime reversal symmetry ($\cal{T}$) broken, i.e., $d_{x^2-y^2}+is$, or$d_{x^2-y^2}+id_{xy}$. In both cases the tunneling conductance within the gapis suppressed with the increase of the exchange interaction due to thesuppression of the Andreev reflection. In the $(d_{x^2-y^2}+is)$-wave case thepeaks that exist when the ferromagnet is a normal metal in the amplitude of thes-wave component due to the bound state formation are reduced symmetrically,with the increase of the exchange field, while in the$(d_{x^2-y^2}+id_{xy})$-wave case the residual density of states within the gapdevelops a dip around E=0 with the increase of the exchange field. Theseresults would be useful to discriminate between $\cal{T}$-broken pairing statesnear the surface in high-$T_c$ superconductorsComment: 17 pages with 11 figure

Charge current in a ferromagnet-superconductor junction with the pairing state of broken time-reversal symmetry