  Epitaxial thin films of the heavy fermion superconductor UNi2Al3 with
Tc{max}=0.98K were investigated. The transition temperature Tc depends on the
current direction which can be related to superconducting gaps opening at
different temperatures. Also the influence of the magnetic ordering at TN=5K on
R(T) is strongly anisotropic indicating different coupling between the magnetic
moments and itinerant charge carriers on the multi-sheeted Fermi surface. The
upper critical field Hc2(T) suggests an unconventional spin-singlet
superconducting state.
