Articles dans des revues à comité de lecture
|About the magnetic behaviour of FexMe1-x (Me=Si, Ge, Sn) amorphous alloys|
|Mangin Ph., Piecuch M., Marchal G., Janot Chr.|
|Journal of Physics F: Metal Physics 8 (1978) 2085|
|DOI : 10.1088/0305-4608/8/10/009|
Magnetisation measurements have been carried out in FexSn 1-x amorphous alloys obtained by atomic deposition. A critical composition, xcr approximately=0.4, for the onset of ferromagnetism has been found along with a rapid increase of the magnetisation when x>x cr. Comparison with data previously obtained for Fe xSi1-x and FexGe1-x amorphous alloys suggests that the onset of magnetic ordering may result from localised interactions; details of the short-range order and chemical correlations might be quite different for Si, Ge and Sn compounds. Temperature dependence of the magnetisation has shown that there is not a well defined Curie temperature in amorphous FexSn1-x which is consistent with magnetic inhomogeneities.