  Paramagnetic effects are shown to result in the appearance of a triplet
component of order parameter in a vortex phase of a d-wave superconductor in
the absence of impurities. This component, which breaks both parity and
time-reversal symmetries of Cooper pairs, is expected to be of the order of
unity in a number of modern superconductors such as organic, high-Tc, and some
others. A generic phase diagram of such type-IV superconductors, which are
singlet ones at H=0 and characterized by singlet-triplet mixed Copper pairs
with broken time-reversal symmetry in a vortex phase, is discussed.
