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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on TbPm3 by Materials Project

TbPm3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Tb is bonded to twelve equivalent Pm atoms to form TbPm12 cuboctahedra that share corners with six equivalent TbPm12 cuboctahedra, corners with twelve equivalent PmTb4Pm8 cuboctahedra, edges with eighteen equivalent PmTb4Pm8 cuboctahedra, faces with eight equivalent TbPm12 cuboctahedra, and faces with twelve equivalent PmTb4Pm8 cuboctahedra. There are six shorter (3.64 Å) and six longer (3.65 Å) Tb–Pm bond lengths. Pm is bonded to four equivalent Tb and eight equivalent Pm atoms to form PmTb4Pm8 cuboctahedra that share corners with four equivalent TbPm12 cuboctahedra, corners with fourteen equivalent PmTb4Pm8 cuboctahedra, edges with six equivalent TbPm12 cuboctahedra, edges with twelve equivalent PmTb4Pm8 cuboctahedra, faces with four equivalent TbPm12 cuboctahedra, and faces with sixteen equivalent PmTb4Pm8 cuboctahedra. There are six shorter (3.64 Å) and two longer (3.66 Å) Pm–Pm bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb3Pm by Materials Project

Tb3Pm is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to eight Tb and four equivalent Pm atoms to form TbTb8Pm4 cuboctahedra that share corners with twelve equivalent TbTb8Pm4 cuboctahedra, edges with eight equivalent PmTb12 cuboctahedra, edges with sixteen TbTb8Pm4 cuboctahedra, faces with four equivalent PmTb12 cuboctahedra, and faces with fourteen TbTb8Pm4 cuboctahedra. All Tb–Tb bond lengths are 3.59 Å. All Tb–Pm bond lengths are 3.59 Å. In the second Tb site, Tb is bonded to eight equivalent Tb and four equivalent Pm atoms to form TbTb8Pm4 cuboctahedra that share corners with four equivalent TbTb8Pm4 cuboctahedra, corners with eight equivalent PmTb12 cuboctahedra, edges with twenty-four TbTb8Pm4 cuboctahedra, faces with six equivalent PmTb12 cuboctahedra, and faces with twelve TbTb8Pm4 cuboctahedra. All Tb–Pm bond lengths are 3.59 Å. Pm is bonded to twelve Tb atoms to form PmTb12 cuboctahedra that share corners with four equivalent PmTb12 cuboctahedra, corners with eight equivalent TbTb8Pm4 cuboctahedra, edges with eight equivalent PmTb12 cuboctahedra, edges with sixteen equivalent TbTb8Pm4 cuboctahedra, faces with four equivalent PmTb12 cuboctahedra, and faces with fourteen TbTb8Pm4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb3Pm by Materials Project

Tb3Pm is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to eight equivalent Tb and four equivalent Pm atoms to form TbTb8Pm4 cuboctahedra that share corners with four equivalent PmTb12 cuboctahedra, corners with fourteen TbTb8Pm4 cuboctahedra, edges with six equivalent PmTb12 cuboctahedra, edges with twelve equivalent TbTb8Pm4 cuboctahedra, faces with four equivalent PmTb12 cuboctahedra, and faces with sixteen TbTb8Pm4 cuboctahedra. There are a spread of Tb–Tb bond distances ranging from 3.58–3.65 Å. There are two shorter (3.59 Å) and two longer (3.63 Å) Tb–Pm bond lengths. In the second Tb site, Tb is bonded to eight Tb and four equivalent Pm atoms to form TbTb8Pm4 cuboctahedra that share corners with four equivalent PmTb12 cuboctahedra, corners with fourteen TbTb8Pm4 cuboctahedra, edges with six equivalent PmTb12 cuboctahedra, edges with twelve TbTb8Pm4 cuboctahedra, faces with four equivalent PmTb12 cuboctahedra, and faces with sixteen TbTb8Pm4 cuboctahedra. There are a spread of Tb–Tb bond distances ranging from 3.58–3.65 Å. There are two shorter (3.59 Å) and two longer (3.63 Å) Tb–Pm bond lengths. Pm is bonded to twelve Tb atoms to form PmTb12 cuboctahedra that share corners with six equivalent PmTb12 cuboctahedra, corners with twelve equivalent TbTb8Pm4 cuboctahedra, edges with eighteen TbTb8Pm4 cuboctahedra, faces with eight equivalent PmTb12 cuboctahedra, and faces with twelve TbTb8Pm4 cuboctahedra.

36 MATERIALS SCIENCE↗