Statistical model structure of A₁₋xZxB₂ Laves phase C15 system - the superconducting Ce₁₋xLaxRu₂ alloy
Local structure of Ce₁₋xLaxRu₂ system, measured by EXAFS has been re-examined and correlated to the statistical ad hoc model, recently applied to the sphalerite, wurtzite and other intermetallic ternary alloys. The deconvolution of the EXAFS data show that the Ce₁₋xLaxRu₂ ternary system is essential...
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| Datum: | 2009 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Schriftenreihe: | Физика низких температур |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Statistical model structure of A₁₋xZxB₂ Laves phase C15 system - the superconducting Ce₁₋xLaxRu₂ alloy / B.V. Robouch, A. Marcelli, N.L. Saini, A. Kisiel// Физика низких температур. — 2009. — Т. 35, № 1. — С. 116-121. — Бібліогр.: 28 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Local structure of Ce₁₋xLaxRu₂ system, measured by EXAFS has been re-examined and correlated to the statistical ad hoc model, recently applied to the sphalerite, wurtzite and other intermetallic ternary alloys. The deconvolution of the EXAFS data show that the Ce₁₋xLaxRu₂ ternary system is essentially a mixture of: CeRu₂ and LaRu₂ binary alloys with a small proportion of the Ce₀.₅La₀.₅Ru₂ ternary configuration, being maximum for the intermediate concentration. Moreover, the analysis reveals that while the LaRu₂ configuration exhibits a Bernoulli random distribution, the presence of a Ce atom affects both the CeRu₂ and Ce₀.₅La₀.₅Ru₂ distributions, strongly favoring the configuration with the CeCe pair, while keeping rare that with a single Ce ion. |
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