Abstract
Magnetic and structural characterisation, including neutron diffraction and magnetotransport measurements, revealed a high T c=422±5 K and a large magnetoresistance at room temperature (3.5% at 2 T), in close agreement with recent results. Nevertheless, our results seem to discard the existence of a ferrimagnetic state at low temperatures. A value of μ Fe=4.1±0.1 μ B/f.u., μ Mo=0±0.1 μ B/f.u. was obtained from neutron diffraction data. The results are explained considering electronic itineracy of the spin down t 2g electrons.
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