Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “TmAgTe2”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

2 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on TmAgTe2 by Materials Project

TmAgTe2 is Caswellsilverite-like structured and crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Tm3+ is bonded to six equivalent Te2- atoms to form TmTe6 octahedra that share corners with twelve equivalent AgTe6 octahedra, edges with six equivalent TmTe6 octahedra, and faces with two equivalent AgTe6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Tm–Te bond lengths are 3.07 Å. Ag1+ is bonded to six equivalent Te2- atoms to form AgTe6 octahedra that share corners with twelve equivalent TmTe6 octahedra, edges with six equivalent AgTe6 octahedra, and faces with two equivalent TmTe6 octahedra. The corner-sharing octahedral tilt angles are 48°. All Ag–Te bond lengths are 3.05 Å. Te2- is bonded in a 6-coordinate geometry to three equivalent Tm3+ and three equivalent Ag1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmAgTe2 by Materials Project

TmAgTe2 crystallizes in the tetragonal P-42_1m space group. The structure is three-dimensional. Tm3+ is bonded to six equivalent Te2- atoms to form TmTe6 octahedra that share corners with eight equivalent TmTe6 octahedra, corners with four equivalent AgTe4 tetrahedra, edges with two equivalent TmTe6 octahedra, and edges with four equivalent AgTe4 tetrahedra. The corner-sharing octahedra tilt angles range from 42–56°. There are a spread of Tm–Te bond distances ranging from 3.02–3.13 Å. Ag1+ is bonded to four equivalent Te2- atoms to form distorted AgTe4 tetrahedra that share corners with four equivalent TmTe6 octahedra, corners with four equivalent AgTe4 tetrahedra, and edges with four equivalent TmTe6 octahedra. The corner-sharing octahedral tilt angles are 62°. All Ag–Te bond lengths are 2.89 Å. Te2- is bonded in a 5-coordinate geometry to three equivalent Tm3+ and two equivalent Ag1+ atoms.

36 MATERIALS SCIENCE↗