We reported on discovery of a new pyrochlore compound, (Bi1.88Fe0.12)(Fe1.42Te0.58)O6.87, which is characterized by the highest Fe content among all known pyrochlores. using x-ray and neutron diffraction we determined its crystallographic properties. At 20K the pyrochlore developed strong spin coupling into the spin glass state. At tis temperature the influence of the magnetic coupling on dielektrik properties was shown, which confirms the magnetoelectric coupling.
COBISS.SI-ID: 1894907