High field Mössbauer and magnetic investigations of Pr0.73Fe4Sb12

In accordance with the filling factor determined by X-ray investigations two Fe sites were identified in the in-field 57Fe Mošssbauer spectra. The derived internal fields at 4.2 K were small (0.35 and 1.45 T at external fields of 13.5 T), whereas from magnetic measurements œeff~2.7œB was estimated for the Fe 4Sb12-sublattice. Œ 2004 Elsevier B.V. All rights reserved.