Publications in Scientific Journals:

M. Giovannini, A. Saccone, St. Müller, H. Michor, E. Bauer:
"Ground state properties of the Y bCu5-xAux (0< x< 1.8) solid solution";
Journal of Physics: Condensed Matter, 17 (2005), S877 - S882.

English abstract:
Ground state properties of the Y bCu5-xAux (0<x &#8804; 1.8) solid solution
M Giovannini1,3, A Saccone1, St Müller2, H Michor2 and E Bauer2
1 Department of Chemistry, University of Genova, Via Dodecaneso 31, I-16146 Genova, Italy
2 Institute of Solid State Physics, TU Wien, 1040 Wien, Austria

3 Author to whom any correspondence should be addressed
E-mail: giovam@chimica.unige.it

Received 5 January 2005
Published 4 March 2005
Print publication: Issue 11 (23 March 2005)

Abstract. Samples prepared across the Y bCu5-xAux solid solution system remain cubic AuBe5-type up to x = 1.8. As the Au concentration x is increased, the Au atoms first replace the Cu atoms on the 4c sites of the F\bar {4} 3 m space group until the sites are fully occupied, and then replace atoms on the 16e sites until the structure becomes unstable. The composition at x = 1 is at the crossover between two kinds of disordered sublattices and the ground state properties follow a non-monotonic behaviour through x = 1.

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