Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Tb”

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.

At least 433 records · Page 24
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Tb3MnB7 by Materials Project

Tb3MnB7 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Tb+3.67+ sites. In the first Tb+3.67+ site, Tb+3.67+ is bonded in a 11-coordinate geometry to eleven B+2.14- atoms. There are a spread of Tb–B bond distances ranging from 2.62–2.74 Å. In the second Tb+3.67+ site, Tb+3.67+ is bonded in a 10-coordinate geometry to ten B+2.14- atoms. There are a spread of Tb–B bond distances ranging from 2.62–2.69 Å. Mn4+ is bonded in a 10-coordinate geometry to ten B+2.14- atoms. There are a spread of Mn–B bond distances ranging from 2.27–2.29 Å. There are four inequivalent B+2.14- sites. In the first B+2.14- site, B+2.14- is bonded in a 9-coordinate geometry to six Tb+3.67+ and three B+2.14- atoms. There is one shorter (1.91 Å) and two longer (1.97 Å) B–B bond length. In the second B+2.14- site, B+2.14- is bonded in a 9-coordinate geometry to four Tb+3.67+, two equivalent Mn4+, and three B+2.14- atoms. There is one shorter (1.78 Å) and one longer (1.80 Å) B–B bond length. In the third B+2.14- site, B+2.14- is bonded in a 9-coordinate geometry to four equivalent Tb+3.67+, two equivalent Mn4+, and three B+2.14- atoms. There is one shorter (1.71 Å) and one longer (1.98 Å) B–B bond length. In the fourth B+2.14- site, B+2.14- is bonded in a 8-coordinate geometry to four equivalent Tb+3.67+, two equivalent Mn4+, and two equivalent B+2.14- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbGaCo4 by Materials Project

TbCo4Ga crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a 6-coordinate geometry to twelve Co and six equivalent Ga atoms. There are six shorter (2.90 Å) and six longer (3.27 Å) Tb–Co bond lengths. All Tb–Ga bond lengths are 3.19 Å. In the second Tb site, Tb is bonded in a 6-coordinate geometry to eighteen Co atoms. There are six shorter (2.81 Å) and twelve longer (3.12 Å) Tb–Co bond lengths. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 12-coordinate geometry to three Tb, four equivalent Co, and two equivalent Ga atoms. All Co–Co bond lengths are 2.45 Å. Both Co–Ga bond lengths are 2.51 Å. In the second Co site, Co is bonded to four Tb, six Co, and two equivalent Ga atoms to form distorted CoTb4Ga2Co6 cuboctahedra that share corners with four equivalent GaTb4Co8 cuboctahedra, corners with twelve equivalent CoTb4Ga2Co6 cuboctahedra, edges with five equivalent CoTb4Ga2Co6 cuboctahedra, edges with five equivalent GaTb4Co8 cuboctahedra, faces with two equivalent GaTb4Co8 cuboctahedra, and faces with eight equivalent CoTb4Ga2Co6 cuboctahedra. Both Co–Co bond lengths are 2.39 Å. Both Co–Ga bond lengths are 2.53 Å. Ga is bonded to four equivalent Tb and eight Co atoms to form GaTb4Co8 cuboctahedra that share corners with eight equivalent CoTb4Ga2Co6 cuboctahedra, corners with eight equivalent GaTb4Co8 cuboctahedra, edges with ten equivalent CoTb4Ga2Co6 cuboctahedra, faces with four equivalent CoTb4Ga2Co6 cuboctahedra, and faces with six equivalent GaTb4Co8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb3Th by Materials Project

ThTb3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Th is bonded to twelve Tb atoms to form ThTb12 cuboctahedra that share corners with four equivalent ThTb12 cuboctahedra, corners with eight equivalent TbTb8Th4 cuboctahedra, edges with eight equivalent ThTb12 cuboctahedra, edges with sixteen equivalent TbTb8Th4 cuboctahedra, faces with four equivalent ThTb12 cuboctahedra, and faces with fourteen TbTb8Th4 cuboctahedra. There are eight shorter (3.56 Å) and four longer (3.59 Å) Th–Tb bond lengths. There are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Th and eight Tb atoms to form TbTb8Th4 cuboctahedra that share corners with twelve equivalent TbTb8Th4 cuboctahedra, edges with eight equivalent ThTb12 cuboctahedra, edges with sixteen TbTb8Th4 cuboctahedra, faces with four equivalent ThTb12 cuboctahedra, and faces with fourteen TbTb8Th4 cuboctahedra. There are four shorter (3.56 Å) and four longer (3.59 Å) Tb–Tb bond lengths. In the second Tb site, Tb is bonded to four equivalent Th and eight equivalent Tb atoms to form TbTb8Th4 cuboctahedra that share corners with four equivalent TbTb8Th4 cuboctahedra, corners with eight equivalent ThTb12 cuboctahedra, edges with twenty-four TbTb8Th4 cuboctahedra, faces with six equivalent ThTb12 cuboctahedra, and faces with twelve TbTb8Th4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb2Co17 by Materials Project

Tb2Co17 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 in a 12-coordinate geometry to eighteen Co atoms. There are a spread of Tb–Co bond distances ranging from 2.95–3.25 Å. In the second Tb site, Tb is bonded in a 2-coordinate geometry to twenty Co atoms. There are a spread of Tb–Co bond distances ranging from 2.90–3.14 Å. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 2-coordinate geometry to one Tb and thirteen Co atoms. There are a spread of Co–Co bond distances ranging from 2.32–2.66 Å. In the second Co site, Co is bonded to two equivalent Tb and ten Co atoms to form CoTb2Co10 cuboctahedra that share corners with fourteen CoTb2Co10 cuboctahedra, edges with six equivalent CoTb3Co9 cuboctahedra, and faces with ten CoTb2Co10 cuboctahedra. There are four shorter (2.39 Å) and four longer (2.40 Å) Co–Co bond lengths. In the third Co site, Co is bonded in a 12-coordinate geometry to two Tb and ten Co atoms. There are a spread of Co–Co bond distances ranging from 2.33–2.56 Å. In the fourth Co site, Co is bonded to three Tb and nine Co atoms to form a mixture of distorted corner, edge, and face-sharing CoTb3Co9 cuboctahedra. Both Co–Co bond lengths are 2.42 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5Ni2Sb by Materials Project

Tb5Ni2Sb crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Ni and two equivalent Sb atoms to form distorted TbNi4Sb2 octahedra that share corners with six equivalent TbNi4Sb2 octahedra, corners with sixteen equivalent TbNi3Sb2 trigonal bipyramids, and faces with eight equivalent TbNi3Sb2 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 0–54°. All Tb–Ni bond lengths are 3.03 Å. Both Tb–Sb bond lengths are 3.34 Å. In the second Tb site, Tb is bonded to three equivalent Ni and two equivalent Sb atoms to form distorted TbNi3Sb2 trigonal bipyramids that share corners with four equivalent TbNi4Sb2 octahedra, corners with twelve equivalent TbNi3Sb2 trigonal bipyramids, edges with seven equivalent TbNi3Sb2 trigonal bipyramids, faces with two equivalent TbNi4Sb2 octahedra, and a faceface with one TbNi3Sb2 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 41–62°. There are two shorter (2.87 Å) and one longer (2.97 Å) Tb–Ni bond lengths. Both Tb–Sb bond lengths are 3.24 Å. Ni is bonded in a 9-coordinate geometry to eight Tb and one Ni atom. The Ni–Ni bond length is 2.68 Å. Sb is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5Ni2Bi by Materials Project

Tb5Ni2Bi crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Ni and two equivalent Bi atoms to form distorted TbNi4Bi2 octahedra that share corners with six equivalent TbNi4Bi2 octahedra, corners with sixteen equivalent TbNi3Bi2 square pyramids, and faces with eight equivalent TbNi3Bi2 square pyramids. The corner-sharing octahedra tilt angles range from 0–50°. All Tb–Ni bond lengths are 3.01 Å. Both Tb–Bi bond lengths are 3.41 Å. In the second Tb site, Tb is bonded to three equivalent Ni and two equivalent Bi atoms to form distorted TbNi3Bi2 square pyramids that share corners with four equivalent TbNi4Bi2 octahedra, corners with twelve equivalent TbNi3Bi2 square pyramids, edges with seven equivalent TbNi3Bi2 square pyramids, faces with two equivalent TbNi4Bi2 octahedra, and a faceface with one TbNi3Bi2 square pyramid. The corner-sharing octahedra tilt angles range from 42–61°. There are two shorter (2.88 Å) and one longer (2.93 Å) Tb–Ni bond lengths. Both Tb–Bi bond lengths are 3.32 Å. Ni is bonded in a 8-coordinate geometry to eight Tb atoms. Bi is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5BiAu2 by Materials Project

Tb5Au2Bi crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Au and two equivalent Bi atoms to form corner-sharing TbBi2Au4 octahedra. The corner-sharing octahedra tilt angles range from 0–49°. All Tb–Au bond lengths are 3.18 Å. Both Tb–Bi bond lengths are 3.30 Å. In the second Tb site, Tb is bonded in a 5-coordinate geometry to three equivalent Au and two equivalent Bi atoms. There are one shorter (3.03 Å) and two longer (3.04 Å) Tb–Au bond lengths. Both Tb–Bi bond lengths are 3.42 Å. Au is bonded in a 8-coordinate geometry to eight Tb atoms. Bi is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5BiPt2 by Materials Project

Tb5Pt2Bi crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Pt and two equivalent Bi atoms to form distorted corner-sharing TbBi2Pt4 octahedra. The corner-sharing octahedra tilt angles range from 0–48°. All Tb–Pt bond lengths are 3.04 Å. Both Tb–Bi bond lengths are 3.47 Å. In the second Tb site, Tb is bonded in a 5-coordinate geometry to three equivalent Pt and two equivalent Bi atoms. There are one shorter (2.96 Å) and two longer (2.99 Å) Tb–Pt bond lengths. Both Tb–Bi bond lengths are 3.36 Å. Pt is bonded in a 8-coordinate geometry to eight Tb atoms. Bi is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaTb3 by Materials Project

NaTb3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Na is bonded in a distorted body-centered cubic geometry to fourteen Tb atoms. There are eight shorter (3.46 Å) and six longer (3.99 Å) Na–Tb bond lengths. There are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a distorted body-centered cubic geometry to four equivalent Na and four equivalent Tb atoms. All Tb–Tb bond lengths are 3.46 Å. In the second Tb site, Tb is bonded in a 8-coordinate geometry to six equivalent Na and eight equivalent Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5SbPt2 by Materials Project

Tb5Pt2Sb crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Pt and two equivalent Sb atoms to form distorted TbSb2Pt4 octahedra that share corners with six equivalent TbSb2Pt4 octahedra, corners with sixteen equivalent TbSb2Pt3 trigonal bipyramids, and faces with eight equivalent TbSb2Pt3 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 0–49°. All Tb–Pt bond lengths are 3.03 Å. Both Tb–Sb bond lengths are 3.43 Å. In the second Tb site, Tb is bonded to three equivalent Pt and two equivalent Sb atoms to form distorted TbSb2Pt3 trigonal bipyramids that share corners with four equivalent TbSb2Pt4 octahedra, corners with twelve equivalent TbSb2Pt3 trigonal bipyramids, edges with seven equivalent TbSb2Pt3 trigonal bipyramids, faces with two equivalent TbSb2Pt4 octahedra, and a faceface with one TbSb2Pt3 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 42–62°. There are one shorter (2.95 Å) and two longer (2.99 Å) Tb–Pt bond lengths. Both Tb–Sb bond lengths are 3.31 Å. Pt is bonded in a 8-coordinate geometry to eight Tb atoms. Sb is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb6CoTe2 by Materials Project

Tb6CoTe2 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a 5-coordinate geometry to one Co and four equivalent Te atoms. The Tb–Co bond length is 3.42 Å. All Tb–Te bond lengths are 3.24 Å. In the second Tb site, Tb is bonded in a 4-coordinate geometry to two equivalent Co and two equivalent Te atoms. Both Tb–Co bond lengths are 2.80 Å. Both Tb–Te bond lengths are 3.31 Å. Co is bonded in a 6-coordinate geometry to nine Tb atoms. Te is bonded in a 9-coordinate geometry to nine Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AcTb3 by Materials Project

AcTb3 is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ac is bonded to twelve Tb atoms to form AcTb12 cuboctahedra that share corners with four equivalent AcTb12 cuboctahedra, corners with eight equivalent TbAc4Tb8 cuboctahedra, edges with eight equivalent AcTb12 cuboctahedra, edges with sixteen equivalent TbAc4Tb8 cuboctahedra, faces with four equivalent AcTb12 cuboctahedra, and faces with fourteen TbAc4Tb8 cuboctahedra. There are eight shorter (3.67 Å) and four longer (3.68 Å) Ac–Tb bond lengths. There are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Ac and eight Tb atoms to form TbAc4Tb8 cuboctahedra that share corners with twelve equivalent TbAc4Tb8 cuboctahedra, edges with eight equivalent AcTb12 cuboctahedra, edges with sixteen TbAc4Tb8 cuboctahedra, faces with four equivalent AcTb12 cuboctahedra, and faces with fourteen TbAc4Tb8 cuboctahedra. There are four shorter (3.67 Å) and four longer (3.68 Å) Tb–Tb bond lengths. In the second Tb site, Tb is bonded to four equivalent Ac and eight equivalent Tb atoms to form TbAc4Tb8 cuboctahedra that share corners with four equivalent TbAc4Tb8 cuboctahedra, corners with eight equivalent AcTb12 cuboctahedra, edges with twenty-four TbAc4Tb8 cuboctahedra, faces with six equivalent AcTb12 cuboctahedra, and faces with twelve TbAc4Tb8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5SbPd2 by Materials Project

Tb5Pd2Sb crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Pd and two equivalent Sb atoms to form distorted TbSb2Pd4 octahedra that share corners with six equivalent TbSb2Pd4 octahedra, corners with sixteen equivalent TbSb2Pd3 trigonal bipyramids, and faces with eight equivalent TbSb2Pd3 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 0–49°. All Tb–Pd bond lengths are 3.04 Å. Both Tb–Sb bond lengths are 3.40 Å. In the second Tb site, Tb is bonded to three equivalent Pd and two equivalent Sb atoms to form distorted TbSb2Pd3 trigonal bipyramids that share corners with four equivalent TbSb2Pd4 octahedra, corners with twelve equivalent TbSb2Pd3 trigonal bipyramids, edges with seven equivalent TbSb2Pd3 trigonal bipyramids, faces with two equivalent TbSb2Pd4 octahedra, and a faceface with one TbSb2Pd3 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 43–64°. There are one shorter (3.00 Å) and two longer (3.01 Å) Tb–Pd bond lengths. Both Tb–Sb bond lengths are 3.30 Å. Pd is bonded in a 8-coordinate geometry to eight Tb atoms. Sb is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrTb3 by Materials Project

SrTb3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr is bonded to twelve Tb atoms to form SrTb12 cuboctahedra that share corners with four equivalent SrTb12 cuboctahedra, corners with eight equivalent TbSr4Tb8 cuboctahedra, edges with eight equivalent SrTb12 cuboctahedra, edges with sixteen equivalent TbSr4Tb8 cuboctahedra, faces with four equivalent SrTb12 cuboctahedra, and faces with fourteen TbSr4Tb8 cuboctahedra. There are four shorter (3.68 Å) and eight longer (3.69 Å) Sr–Tb bond lengths. There are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Sr and eight Tb atoms to form TbSr4Tb8 cuboctahedra that share corners with twelve equivalent TbSr4Tb8 cuboctahedra, edges with eight equivalent SrTb12 cuboctahedra, edges with sixteen TbSr4Tb8 cuboctahedra, faces with four equivalent SrTb12 cuboctahedra, and faces with fourteen TbSr4Tb8 cuboctahedra. There are four shorter (3.68 Å) and four longer (3.69 Å) Tb–Tb bond lengths. In the second Tb site, Tb is bonded to four equivalent Sr and eight equivalent Tb atoms to form TbSr4Tb8 cuboctahedra that share corners with four equivalent TbSr4Tb8 cuboctahedra, corners with eight equivalent SrTb12 cuboctahedra, edges with twenty-four TbSr4Tb8 cuboctahedra, faces with six equivalent SrTb12 cuboctahedra, and faces with twelve TbSr4Tb8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb5BiPd2 by Materials Project

Tb5Pd2Bi crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Pd and two equivalent Bi atoms to form distorted TbBi2Pd4 octahedra that share corners with six equivalent TbBi2Pd4 octahedra, corners with sixteen equivalent TbBi2Pd3 trigonal bipyramids, and faces with eight equivalent TbBi2Pd3 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 0–49°. All Tb–Pd bond lengths are 3.06 Å. Both Tb–Bi bond lengths are 3.44 Å. In the second Tb site, Tb is bonded to three equivalent Pd and two equivalent Bi atoms to form distorted TbBi2Pd3 trigonal bipyramids that share corners with four equivalent TbBi2Pd4 octahedra, corners with twelve equivalent TbBi2Pd3 trigonal bipyramids, edges with seven equivalent TbBi2Pd3 trigonal bipyramids, faces with two equivalent TbBi2Pd4 octahedra, and a faceface with one TbBi2Pd3 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 43–63°. There are two shorter (3.00 Å) and one longer (3.02 Å) Tb–Pd bond lengths. Both Tb–Bi bond lengths are 3.34 Å. Pd is bonded in a 8-coordinate geometry to eight Tb atoms. Bi is bonded in a distorted q6 geometry to ten Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb7PtI12 by Materials Project

Tb7PtI12 is trigonal omega-derived structured and crystallizes in the trigonal R-3 space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to one Pt and five I atoms to form a mixture of distorted edge and corner-sharing TbPtI5 octahedra. The corner-sharing octahedra tilt angles range from 0–7°. The Tb–Pt bond length is 2.74 Å. There are a spread of Tb–I bond distances ranging from 3.13–3.35 Å. In the second Tb site, Tb is bonded to six equivalent I atoms to form edge-sharing TbI6 octahedra. All Tb–I bond lengths are 3.09 Å. Pt is bonded in an octahedral geometry to six equivalent Tb atoms. There are two inequivalent I sites. In the first I site, I is bonded in a distorted T-shaped geometry to three equivalent Tb atoms. In the second I site, I is bonded in a distorted T-shaped geometry to three Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbNiP by Materials Project

TbNiP is hexagonal omega structure-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 six equivalent Ni and six equivalent P atoms to form a mixture of edge and face-sharing TbNi6P6 cuboctahedra. All Tb–Ni bond lengths are 2.95 Å. All Tb–P bond lengths are 3.00 Å. In the second Tb site, Tb is bonded to six equivalent Ni and six equivalent P atoms to form a mixture of edge and face-sharing TbNi6P6 cuboctahedra. All Tb–Ni bond lengths are 3.01 Å. All Tb–P bond lengths are 2.95 Å. Ni is bonded in a 3-coordinate geometry to six Tb and three equivalent P atoms. All Ni–P bond lengths are 2.26 Å. P is bonded in a 3-coordinate geometry to six Tb and three equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb3Ga5 by Materials Project

Tb3Ga5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded in a 5-coordinate geometry to nine Ga atoms. There are a spread of Tb–Ga bond distances ranging from 2.87–3.30 Å. In the second Tb site, Tb is bonded in a 10-coordinate geometry to ten Ga atoms. There are a spread of Tb–Ga bond distances ranging from 3.00–3.33 Å. There are four inequivalent Ga sites. In the first Ga site, Ga is bonded in a 10-coordinate geometry to six Tb and four Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.67–2.90 Å. In the second Ga site, Ga is bonded in a 1-coordinate geometry to five Tb and five Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.67–3.08 Å. In the third Ga site, Ga is bonded in a 10-coordinate geometry to six Tb and four Ga atoms. In the fourth Ga site, Ga is bonded in a 9-coordinate geometry to six Tb and three Ga atoms.

36 MATERIALS SCIENCE↗