Au--In System Studied with Perturbed Angular Correlation Method
P. Wodniecki, A. Kulińska and B. Wodniecka
The Henryk Niewodniczański Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Kraków, Poland
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The Au--In system was the subject of our comprehensive study with the perturbed angular correlation technique. Bulk samples of all intermetallic phases shown in the phase diagram were prepared to determine the hyperfine interaction parameters and their temperature dependence. A polymorphic phase transformation in the AuIn phase at about 630 K and a new metastable modification of Au7In3 after quenching the sample of 30 at.% In from temperature above 700 K were found. In addition, formation of the Au--In phases of different stoichiometries at the interfaces of thin Au/In films was observed. It turned out that the starting composition of bilayer samples, i.e. the thickness ratio of the Au and In layers, strongly influenced the stoichiometry of the formed compounds.
DOI: 10.12693/APhysPolA.100.817
PACS numbers: 31.30.Gs, 68.55.Nq, 71.20.Lp