Following out-of-stoichiometry phase coexistence with neutron techniques

The magnetic properties of the pseudo-binary TbPt1-xCux compounds are strongly influenced by the preparation processes. In the 'as quenched' compounds, phase coexistence around the nominal composition x is observed. In this paper we show how the analysis of the magnetic neutron-diffraction patterns of the annealed samples allows to characterise this out-of-stoichiometry phase coexistence. In addition, from this analysis we are able to extract the percentages of the different phases