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Magnetic and structural studies of rare earth-iron-manganese laves phase ternaries II

1976; Elsevier BV; Volume: 17; Issue: 4 Linguagem: Inglês

10.1016/s0022-4596(76)80005-9

1095-726X

A. S. Ilyushin, W.E. Wallace,

Magnetic properties of thin films

Structures, magnetic properties and Mössbauer spectra of the systems Gd(Fe1−xMnx)2, Tb(Fe1−x-Mnx)2, and Dy(Fe1−xMnx)2 are presented. The Tb and Dy alloys possess the C15 structure for all values of x. The Gd alloys possess the C15 structure for x ranging from 0 to 0.2 and from 0.8 to 1.0; an intermediate phase of different, and as yet unknown, structure exists in the range x=0.5 to 0.6. The Curie temperature and the Fe hyperfine field are reduced as Mn replaces Fe in the lattice. These effects are taken to be a consequence of antiferromagnetic Fe-Mn interactions.