Magnetization Mössbauer Effect and Superconductivity in Fe2Te3

The magnetization and Mössbauer effect in Fe2Te3 have been measured between liquid helium temperatures and 300 K and the Meissner effect has been studied between 1.7 and 4.2 K. Both the Mössbauer effect and the magnetization indicate that Fe2Te3 undergoes a weak ferromagnetic transition at about 10 K and has an internal field of 11 kOe at the lowest temperatures. The superconducting transition predicted by Atzeri and Mula was not observed. Above 10 K the temperature variation of the susceptibility is probably a reflection of the energy dependence of the d band density of states on the Pauli spin susceptibility of the material.