AuCd4: A Hume–Rothery Phase with
VEC of 1.8 and Icosahedral and Trigonal-Prismatic Clusters as Building
Blocks
Posted on 2015-02-02 - 00:00
The
η phase in the Au–Cd binary system has been synthesized,
and the structure has been analyzed by single-crystal X-ray diffraction.
The compound η-AuCd4 crystallizes in the hexagonal
space group P63/m (No.
176). The unit cell contains ∼273 atoms. The compound AuCd4 represents a √3a × √3a × c superstructure
of the AgMg4 type. The structure can be well described
by icosahedral and trigonal-prismatic clusters. A phase transition
to the high-temperature ε phase occurs exothermically at around
578 K. The compound is formed at a sharp valence electron concentration
of 1.8 e/a. The compound can be understood within the framework of
the Hume-Rothery stabilization mechanism.
CITE THIS COLLECTION
DataCite
No result found
Jana, Partha P.; Lidin, Sven (2016). AuCd4: A Hume–Rothery Phase with
VEC of 1.8 and Icosahedral and Trigonal-Prismatic Clusters as Building
Blocks. ACS Publications. Collection. https://doi.org/10.1021/ic500616t
or
Select your citation style and then place your mouse over the citation text to select it.
