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5 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PmTm3 by Materials Project

Tm3Pm is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded to eight Tm and four equivalent Pm atoms to form TmPm4Tm8 cuboctahedra that share corners with twelve equivalent TmPm4Tm8 cuboctahedra, edges with eight equivalent PmTm12 cuboctahedra, edges with sixteen TmPm4Tm8 cuboctahedra, faces with four equivalent PmTm12 cuboctahedra, and faces with fourteen TmPm4Tm8 cuboctahedra. There are four shorter (3.53 Å) and four longer (3.54 Å) Tm–Tm bond lengths. All Tm–Pm bond lengths are 3.54 Å. In the second Tm site, Tm is bonded to eight equivalent Tm and four equivalent Pm atoms to form TmPm4Tm8 cuboctahedra that share corners with four equivalent TmPm4Tm8 cuboctahedra, corners with eight equivalent PmTm12 cuboctahedra, edges with twenty-four TmPm4Tm8 cuboctahedra, faces with six equivalent PmTm12 cuboctahedra, and faces with twelve TmPm4Tm8 cuboctahedra. All Tm–Pm bond lengths are 3.53 Å. Pm is bonded to twelve Tm atoms to form PmTm12 cuboctahedra that share corners with four equivalent PmTm12 cuboctahedra, corners with eight equivalent TmPm4Tm8 cuboctahedra, edges with eight equivalent PmTm12 cuboctahedra, edges with sixteen equivalent TmPm4Tm8 cuboctahedra, faces with four equivalent PmTm12 cuboctahedra, and faces with fourteen TmPm4Tm8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmTm3 by Materials Project

Tm3Pm is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are three inequivalent Tm sites. In the first Tm site, Tm is bonded to eight Tm and four equivalent Pm atoms to form TmPm4Tm8 cuboctahedra that share corners with four equivalent PmTm12 cuboctahedra, corners with fourteen TmPm4Tm8 cuboctahedra, edges with six equivalent PmTm12 cuboctahedra, edges with twelve TmPm4Tm8 cuboctahedra, faces with four equivalent PmTm12 cuboctahedra, and faces with sixteen TmPm4Tm8 cuboctahedra. There are a spread of Tm–Tm bond distances ranging from 3.49–3.64 Å. There are two shorter (3.52 Å) and two longer (3.59 Å) Tm–Pm bond lengths. In the second Tm site, Tm is bonded to eight Tm and four equivalent Pm atoms to form TmPm4Tm8 cuboctahedra that share corners with four equivalent PmTm12 cuboctahedra, corners with fourteen TmPm4Tm8 cuboctahedra, edges with six equivalent PmTm12 cuboctahedra, edges with twelve TmPm4Tm8 cuboctahedra, faces with four equivalent PmTm12 cuboctahedra, and faces with sixteen TmPm4Tm8 cuboctahedra. There are a spread of Tm–Tm bond distances ranging from 3.49–3.64 Å. There are two shorter (3.52 Å) and two longer (3.59 Å) Tm–Pm bond lengths. In the third Tm site, Tm is bonded to eight Tm and four equivalent Pm atoms to form TmPm4Tm8 cuboctahedra that share corners with four equivalent PmTm12 cuboctahedra, corners with fourteen TmPm4Tm8 cuboctahedra, edges with six equivalent PmTm12 cuboctahedra, edges with twelve TmPm4Tm8 cuboctahedra, faces with four equivalent PmTm12 cuboctahedra, and faces with sixteen TmPm4Tm8 cuboctahedra. There are two shorter (3.52 Å) and two longer (3.59 Å) Tm–Pm bond lengths. Pm is bonded to twelve Tm atoms to form PmTm12 cuboctahedra that share corners with six equivalent PmTm12 cuboctahedra, corners with twelve equivalent TmPm4Tm8 cuboctahedra, edges with eighteen TmPm4Tm8 cuboctahedra, faces with eight equivalent PmTm12 cuboctahedra, and faces with twelve TmPm4Tm8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmTm by Materials Project

TmPm crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Tm is bonded to six equivalent Tm and six equivalent Pm atoms to form TmPm6Tm6 cuboctahedra that share corners with eighteen equivalent TmPm6Tm6 cuboctahedra, edges with six equivalent TmPm6Tm6 cuboctahedra, edges with twelve equivalent PmPm6Tm6 cuboctahedra, faces with eight equivalent TmPm6Tm6 cuboctahedra, and faces with twelve equivalent PmPm6Tm6 cuboctahedra. All Tm–Tm bond lengths are 3.61 Å. All Tm–Pm bond lengths are 3.57 Å. Pm is bonded to six equivalent Tm and six equivalent Pm atoms to form PmPm6Tm6 cuboctahedra that share corners with eighteen equivalent PmPm6Tm6 cuboctahedra, edges with six equivalent PmPm6Tm6 cuboctahedra, edges with twelve equivalent TmPm6Tm6 cuboctahedra, faces with eight equivalent PmPm6Tm6 cuboctahedra, and faces with twelve equivalent TmPm6Tm6 cuboctahedra. All Pm–Pm bond lengths are 3.61 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmTm3 by Materials Project

Tm3Pm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tm is bonded to eight equivalent Tm and four equivalent Pm atoms to form TmPm4Tm8 cuboctahedra that share corners with twelve equivalent TmPm4Tm8 cuboctahedra, edges with eight equivalent PmTm12 cuboctahedra, edges with sixteen equivalent TmPm4Tm8 cuboctahedra, faces with four equivalent PmTm12 cuboctahedra, and faces with fourteen equivalent TmPm4Tm8 cuboctahedra. All Tm–Tm bond lengths are 3.52 Å. All Tm–Pm bond lengths are 3.52 Å. Pm is bonded to twelve equivalent Tm atoms to form PmTm12 cuboctahedra that share corners with twelve equivalent PmTm12 cuboctahedra, edges with twenty-four equivalent TmPm4Tm8 cuboctahedra, faces with six equivalent PmTm12 cuboctahedra, and faces with twelve equivalent TmPm4Tm8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pm3Tm by Materials Project

TmPm3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tm is bonded to twelve Pm atoms to form TmPm12 cuboctahedra that share corners with four equivalent TmPm12 cuboctahedra, corners with eight equivalent PmPm8Tm4 cuboctahedra, edges with eight equivalent TmPm12 cuboctahedra, edges with sixteen equivalent PmPm8Tm4 cuboctahedra, faces with four equivalent TmPm12 cuboctahedra, and faces with fourteen PmPm8Tm4 cuboctahedra. There are four shorter (3.61 Å) and eight longer (3.62 Å) Tm–Pm bond lengths. There are two inequivalent Pm sites. In the first Pm site, Pm is bonded to four equivalent Tm and eight Pm atoms to form PmPm8Tm4 cuboctahedra that share corners with twelve equivalent PmPm8Tm4 cuboctahedra, edges with eight equivalent TmPm12 cuboctahedra, edges with sixteen PmPm8Tm4 cuboctahedra, faces with four equivalent TmPm12 cuboctahedra, and faces with fourteen PmPm8Tm4 cuboctahedra. There are four shorter (3.61 Å) and four longer (3.62 Å) Pm–Pm bond lengths. In the second Pm site, Pm is bonded to four equivalent Tm and eight equivalent Pm atoms to form PmPm8Tm4 cuboctahedra that share corners with four equivalent PmPm8Tm4 cuboctahedra, corners with eight equivalent TmPm12 cuboctahedra, edges with twenty-four PmPm8Tm4 cuboctahedra, faces with six equivalent TmPm12 cuboctahedra, and faces with twelve PmPm8Tm4 cuboctahedra.

36 MATERIALS SCIENCE↗