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Results for “Al-Au-Ho”

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HoAl7Au3 by Materials Project

HoAu3Al7 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Ho is bonded in a 6-coordinate geometry to six equivalent Au and twelve equivalent Al atoms. All Ho–Au bond lengths are 3.25 Å. There are six shorter (3.32 Å) and six longer (3.37 Å) Ho–Al bond lengths. Au is bonded in a 9-coordinate geometry to two equivalent Ho and seven Al atoms. There are a spread of Au–Al bond distances ranging from 2.59–2.67 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a distorted trigonal planar geometry to two equivalent Ho and three equivalent Au atoms. In the second Al site, Al is bonded in a trigonal planar geometry to three equivalent Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoAlAu2 by Materials Project

HoAu2Al is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ho is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Ho–Au bond lengths are 2.95 Å. Au is bonded in a body-centered cubic geometry to four equivalent Ho and four equivalent Al atoms. All Au–Al bond lengths are 2.95 Å. Al is bonded in a body-centered cubic geometry to eight equivalent Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoAlAu by Materials Project

HoAuAl crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho is bonded in a 5-coordinate geometry to five equivalent Au atoms. There are a spread of Ho–Au bond distances ranging from 3.03–3.15 Å. Au is bonded in a 9-coordinate geometry to five equivalent Ho and four equivalent Al atoms. There are a spread of Au–Al bond distances ranging from 2.63–2.75 Å. Al is bonded in a 4-coordinate geometry to four equivalent Au atoms.

36 MATERIALS SCIENCE↗