Magnetization, de and ac magnetic susceptibility, electrical resistivi
ty and magnetoresistivity measurements have been performed on a single
crystal of U4O4Te3. This new compound orders ferro(ferri)magnetically
at T-C = (80 +/- 2)K and probably undergoes a reorientational magneti
c phase transition at T-1 = 23 K. U4O4Te3 shows a semimetallic charact
er of its electrical conductivity.