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New phases in the Yb–Au–Si and Ca–Au–Si systems
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28. Juli 2010
Abstract
The YbAu2–xSix and CaAu2–xSix systems were studied by X-ray techniques in the range 0.7 ≤ x ≤ 1.3. The YbAuSi compound forms peritectically at 1478 K and is stable till 1168 K in its high-temperature form (EuAuGe type); below 1168 K the SrAgGe type occurs. No equiatomic compound exists in the Ca–Au–Si system. In the gold- and silicon-rich regions the two systems show similar structural behaviour: the gold-rich phases belong to the CeCu2 or the EuAuGe type, while the silicon-rich phases crystallize in the A1B2 type. The magnetic susceptibility at room temperature indicates the divalency of ytterbium in YbAuSi.
Published Online: 2010-7-28
Published in Print: 1999-2-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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Artikel in diesem Heft
- A solution of the phase problem. I. Latent lattices and their optimisation
- Elastic properties of citric acid, citric acid hydrate, trilithium citrate tetrahydrate, trisodium citrate pentahydrate, and tripotassium citrate hydrate
- Determination of the superstructures for the stannides ZrIrSn, HfCoSn, and HfRhSn
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- Molecular and crystal structures of two Nα-protected α-aminoacyl fluorides and their free carboxylic acid synthetic precursors1
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