  A method to identify the parity of unconventional superconductors is proposed
based on tunneling spectroscopy. For a model of calculation, we adopt a
ferromagnet/superconductor (F/S) junction of which tunneling current is spin
polarized. The tunneling conductance spectra are shown to be quite sensitive to
the direction of the magnetization axis in the ferromagnet only when the
superconductor has odd parity. Therefore, it is possible to distinguish the
parity of the superconductor by measuring the tunneling spectroscopy in F/S
junctions.
