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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on ErAs by Materials Project

ErAs is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Er3+ is bonded to six equivalent As3- atoms to form a mixture of edge and corner-sharing ErAs6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Er–As bond lengths are 2.89 Å. As3- is bonded to six equivalent Er3+ atoms to form a mixture of edge and corner-sharing AsEr6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ErAs by Materials Project

ErAs is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er3+ is bonded in a body-centered cubic geometry to eight equivalent As3- atoms. All Er–As bond lengths are 3.07 Å. As3- is bonded in a body-centered cubic geometry to eight equivalent Er3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er3As by Materials Project

Er3As is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Er is bonded in a distorted square co-planar geometry to four equivalent As atoms. All Er–As bond lengths are 3.25 Å. As is bonded to twelve equivalent Er atoms to form a mixture of corner and face-sharing AsEr12 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ErAs3 by Materials Project

ErAs3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Er3+ is bonded to twelve equivalent As1- atoms to form a mixture of face and corner-sharing ErAs12 cuboctahedra. There are six shorter (3.00 Å) and six longer (3.15 Å) Er–As bond lengths. As1- is bonded in a 6-coordinate geometry to four equivalent Er3+ and two equivalent As1- atoms. Both As–As bond lengths are 2.72 Å.

36 MATERIALS SCIENCE↗