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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ni(SN)4 by Materials Project

Ni(NS)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight Ni(NS)4 clusters. Ni4+ is bonded in a 2-coordinate geometry to two S2- atoms. There are one shorter (2.11 Å) and one longer (2.12 Å) Ni–S bond lengths. There are four inequivalent N1+ sites. In the first N1+ site, N1+ is bonded in a distorted single-bond geometry to one S2- atom. The N–S bond length is 1.54 Å. In the second N1+ site, N1+ is bonded in a bent 120 degrees geometry to two S2- atoms. There is one shorter (1.62 Å) and one longer (1.63 Å) N–S bond length. In the third N1+ site, N1+ is bonded in a distorted single-bond geometry to one S2- atom. The N–S bond length is 1.54 Å. In the fourth N1+ site, N1+ is bonded in a bent 120 degrees geometry to two S2- atoms. Both N–S bond lengths are 1.62 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a water-like geometry to one Ni4+ and one N1+ atom. In the second S2- site, S2- is bonded in a bent 120 degrees geometry to two N1+ atoms. In the third S2- site, S2- is bonded in a water-like geometry to one Ni4+ and one N1+ atom. In the fourth S2- site, S2- is bonded in a water-like geometry to two N1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2025

Anomalous Hall effect in the polar magnet Gd 3 ⁢Ni 8 ⁢Sn 4 : A candidate for hosting skyrmions

While recent theoretical studies have positioned noncollinear polar magnets with C nv symmetry as compelling candidates for realizing topological magnetic phases and substantial intrinsic anomalous Hall conductivity, experimental realizations of the same in strongly correlated systems remain rare. Here, we present a large intrinsic anomalous Hall effect and extended topological magnetic ordering in Gd 3 ⁢Ni 8 ⁢Sn 4 with hexagonal C 6v symmetry. Observation of topological Hall response, corroborated by metamagnetic anomalies in isothermal magnetization, peak/hump features in field-evolution of ac susceptibility and longitudinal resistivity suggest the signature of topological magnetic phases. The anomalous Hall effect is quantitatively accounted for by the intrinsic Berry curvature-mediated mechanism. Finally, our results underscore polar magnets as a promising platform to investigate a plethora of emergent electrodynamic responses rooted in the interplay between magnetism and topology.

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗
DOE OSTI2020

Materials Data on LuNiSn4 by Materials Project

LuNiSn4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Lu is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Lu–Sn bond distances ranging from 3.19–3.43 Å. Ni is bonded in a distorted body-centered cubic geometry to eight Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.67–2.76 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni atoms. In the second Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni atoms. In the third Sn site, Sn is bonded in a 8-coordinate geometry to six equivalent Lu and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.03 Å. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Lu and two equivalent Ni atoms. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Lu and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbNiSn4 by Materials Project

TbNiSn4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Tb is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Tb–Sn bond distances ranging from 3.22–3.47 Å. Ni is bonded in a distorted body-centered cubic geometry to eight Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.65–2.79 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Tb, two equivalent Ni, and five Sn atoms. There are one shorter (3.09 Å) and four longer (3.17 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent Tb and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.01 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Tb, two equivalent Ni, and four equivalent Sn atoms. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni atoms. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmNiSn4 by Materials Project

TmNiSn4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Tm is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Tm–Sn bond distances ranging from 3.20–3.42 Å. Ni is bonded in a distorted body-centered cubic geometry to one Ni and eight Sn atoms. The Ni–Ni bond length is 2.86 Å. There are a spread of Ni–Sn bond distances ranging from 2.62–2.79 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Tm, two equivalent Ni, and five Sn atoms. There are one shorter (3.06 Å) and four longer (3.15 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 8-coordinate geometry to six equivalent Tm and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.98 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Tm, two equivalent Ni, and four equivalent Sn atoms. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni atoms. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2023

Metal Sulfide Ion Exchangers: High Acid Stability of Na 2 x Mg 2 y – x Sn 4– y S 8 (NMS) and Topotactic Conversion to 2D Solid Acids with Semiconducting Character

Metal sulfide ion exchange materials (MSIEs) are of interest for nuclear waste remediation applications. Here, we report the high stability of two structurally related metal sulfide ion exchange materials, Na 2x Mg 2y–x Sn 4–y S 8 (Mg-NMS) and Na 2 SnS 3 (Na-NMS), in strongly acid media, in addition to the preparation of Na 2x Ni 2y–x Sn 4–y S 8 (Ni-NMS). Their formation progress during synthesis is studied with in-situ methods, with the target phases appearing in <15 min, reaction completion in <12 h, and high yields (75–80%). Upon contact with nitric or hydrochloric acid, these materials topotactically exchange Na + for H + , proceeding in a stepwise protonation pathway for Na 5.33 Sn 2.67 S 8 . Na-NMS is stable in 2 M HNO 3 and Mg-NMS is stable in 4 M HNO 3 for up to 4 h, while both NMS materials are stable in 6 M HCl for up to 4 days. However, the treatment of Mg-NMS and Na-NMS with 2–6 M H 2 SO 4 reveals a much slower protonation process since after 4 h of contact both NMS and HMS are present in the solution. The resultant protonated materials, H 2x Mg 2y–x Sn 4–y S 8 and H 4x [(H y Na y–1 ) 1.33x Sn 4––1.33x ]S 8 , are themselves solid acids and readily react with and intercalate a variety of organic amines, where the band gap of the resultant adduct is influenced by amine choice and can be tuned within the range of 1.88(5)–2.27(5) eV. The work function energy values for all materials were extracted from photoemission yield spectroscopy in air (PYSA) measurements and range from 5.47 (2) to 5.76 (2) eV, and the relative band alignments of the materials are discussed. DFT calculations suggest that the electronic structure of Na 2 MgSn 3 S 8 and H 2 MgSn 3 S 8 makes them indirect gap semiconductors with multi-valley band edges, with carriers confined to the [MgSn 3 S 8 ] 2– layers. Light electron effective masses indicate high electron mobilities.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on ErNiSn4 by Materials Project

ErNiSn4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Er is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Er–Sn bond distances ranging from 3.20–3.46 Å. Ni is bonded in a distorted body-centered cubic geometry to eight Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.65–2.76 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Er, two equivalent Ni, and five Sn atoms. There are one shorter (3.07 Å) and four longer (3.15 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 8-coordinate geometry to six equivalent Er and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.02 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Er, two equivalent Ni, and five Sn atoms. The Sn–Sn bond length is 3.09 Å. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoNiSn4 by Materials Project

HoNiSn4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Ho is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Ho–Sn bond distances ranging from 3.21–3.47 Å. Ni is bonded in a distorted body-centered cubic geometry to eight Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.65–2.77 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Ho, two equivalent Ni, and five Sn atoms. There are one shorter (3.07 Å) and four longer (3.16 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 8-coordinate geometry to six equivalent Ho and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.03 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Ho, two equivalent Ni, and five Sn atoms. The Sn–Sn bond length is 3.09 Å. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on DyNiSn4 by Materials Project

DyNiSn4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Dy is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Dy–Sn bond distances ranging from 3.22–3.45 Å. Ni is bonded in a distorted body-centered cubic geometry to eight Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.63–2.80 Å. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Dy, two equivalent Ni, and five Sn atoms. There are one shorter (3.07 Å) and four longer (3.17 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 8-coordinate geometry to six equivalent Dy and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.99 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Dy, two equivalent Ni, and five Sn atoms. The Sn–Sn bond length is 3.10 Å. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to four equivalent Ni and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cr5NiSn12 by Materials Project

NiCr5Sn12 is Khatyrkite-derived structured and crystallizes in the orthorhombic C222 space group. The structure is three-dimensional. there are three inequivalent Cr sites. In the first Cr site, Cr is bonded in a 10-coordinate geometry to two equivalent Cr and eight Sn atoms. Both Cr–Cr bond lengths are 2.76 Å. There are a spread of Cr–Sn bond distances ranging from 2.77–2.88 Å. In the second Cr site, Cr is bonded in a 10-coordinate geometry to two equivalent Cr and eight Sn atoms. There are a spread of Cr–Sn bond distances ranging from 2.79–2.87 Å. In the third Cr site, Cr is bonded in a distorted q6 geometry to two equivalent Ni and eight Sn atoms. Both Cr–Ni bond lengths are 2.77 Å. There are four shorter (2.75 Å) and four longer (2.86 Å) Cr–Sn bond lengths. Ni is bonded in a distorted q6 geometry to two equivalent Cr and eight Sn atoms. There are four shorter (2.75 Å) and four longer (2.86 Å) Ni–Sn bond lengths. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to three Cr and one Ni atom. In the second Sn site, Sn is bonded in a 4-coordinate geometry to four Cr atoms. In the third Sn site, Sn is bonded in a 2-coordinate geometry to two equivalent Cr, two equivalent Ni, and three Sn atoms. There are one shorter (3.04 Å) and two longer (3.14 Å) Sn–Sn bond lengths. In the fourth Sn site, Sn is bonded in a 4-coordinate geometry to four Cr and one Sn atom. In the fifth Sn site, Sn is bonded in a 4-coordinate geometry to four Cr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ni10SnP3 by Materials Project

Ni10SnP3 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are seven inequivalent Ni sites. In the first Ni site, Ni is bonded in a 3-coordinate geometry to three equivalent P atoms. All Ni–P bond lengths are 2.29 Å. In the second Ni site, Ni is bonded in a distorted bent 150 degrees geometry to two equivalent Sn and two equivalent P atoms. Both Ni–Sn bond lengths are 2.87 Å. Both Ni–P bond lengths are 2.25 Å. In the third Ni site, Ni is bonded in a 3-coordinate geometry to one Ni, one Sn, and three P atoms. The Ni–Ni bond length is 2.51 Å. The Ni–Sn bond length is 2.61 Å. There are two shorter (2.20 Å) and one longer (2.29 Å) Ni–P bond lengths. In the fourth Ni site, Ni is bonded in a 2-coordinate geometry to one Ni, two Sn, and two equivalent P atoms. The Ni–Ni bond length is 2.78 Å. There are one shorter (2.65 Å) and one longer (3.03 Å) Ni–Sn bond lengths. Both Ni–P bond lengths are 2.29 Å. In the fifth Ni site, Ni is bonded in a 3-coordinate geometry to one Ni, one Sn, and three P atoms. The Ni–Ni bond length is 2.72 Å. The Ni–Sn bond length is 2.61 Å. There are two shorter (2.27 Å) and one longer (2.31 Å) Ni–P bond lengths. In the sixth Ni site, Ni is bonded in a 4-coordinate geometry to nine Ni, one Sn, and three equivalent P atoms. The Ni–Sn bond length is 2.54 Å. All Ni–P bond lengths are 2.40 Å. In the seventh Ni site, Ni is bonded in a 4-coordinate geometry to one Sn and three equivalent P atoms. The Ni–Sn bond length is 2.45 Å. All Ni–P bond lengths are 2.36 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a cuboctahedral geometry to twelve Ni atoms. In the second Sn site, Sn is bonded in a 5-coordinate geometry to fourteen Ni atoms. There are two inequivalent P sites. In the first P site, P is bonded in a 9-coordinate geometry to nine Ni atoms. In the second P site, P is bonded in a body-centered cubic geometry to eight Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Lu2NiSn6 by Materials Project

Lu2NiSn6 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Lu is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Lu–Sn bond distances ranging from 3.15–3.43 Å. Ni is bonded in a body-centered cubic geometry to eight Sn atoms. There are four shorter (2.70 Å) and four longer (2.71 Å) Ni–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Lu and two equivalent Ni atoms. In the second Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Lu and two equivalent Ni atoms. In the third Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent Lu and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.02 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm2NiSn6 by Materials Project

Tm2NiSn6 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Tm is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Tm–Sn bond distances ranging from 3.16–3.44 Å. Ni is bonded in a body-centered cubic geometry to eight Sn atoms. All Ni–Sn bond lengths are 2.71 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Tm and two equivalent Ni atoms. In the second Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Tm and two equivalent Ni atoms. In the third Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent Tm and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.02 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er2NiSn6 by Materials Project

Er2NiSn6 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Er is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Er–Sn bond distances ranging from 3.16–3.44 Å. Ni is bonded in a body-centered cubic geometry to eight Sn atoms. All Ni–Sn bond lengths are 2.71 Å. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Er and two equivalent Ni atoms. In the second Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Er and two equivalent Ni atoms. In the third Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent Er and two equivalent Sn atoms. Both Sn–Sn bond lengths are 3.01 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScTi4(NiSn)5 by Materials Project

ScTi4(NiSn)5 is half-Heusler-derived structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Sc is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are three shorter (2.64 Å) and one longer (2.67 Å) Sc–Ni bond lengths. There are three shorter (3.02 Å) and three longer (3.06 Å) Sc–Sn bond lengths. There are four inequivalent Ti sites. In the first Ti site, Ti is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are three shorter (2.57 Å) and one longer (2.59 Å) Ti–Ni bond lengths. There are three shorter (2.97 Å) and three longer (3.01 Å) Ti–Sn bond lengths. In the second Ti site, Ti is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are one shorter (2.58 Å) and three longer (2.59 Å) Ti–Ni bond lengths. There are three shorter (2.96 Å) and three longer (3.00 Å) Ti–Sn bond lengths. In the third Ti site, Ti is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are one shorter (2.55 Å) and three longer (2.59 Å) Ti–Ni bond lengths. There are three shorter (2.98 Å) and three longer (2.99 Å) Ti–Sn bond lengths. In the fourth Ti site, Ti is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are one shorter (2.55 Å) and three longer (2.60 Å) Ti–Ni bond lengths. There are three shorter (2.97 Å) and three longer (2.98 Å) Ti–Sn bond lengths. There are five inequivalent Ni sites. In the first Ni site, Ni is bonded in a body-centered cubic geometry to one Sc, three equivalent Ti, and four Sn atoms. There are one shorter (2.55 Å) and three longer (2.61 Å) Ni–Sn bond lengths. In the second Ni site, Ni is bonded in a body-centered cubic geometry to four Ti and four Sn atoms. All Ni–Sn bond lengths are 2.58 Å. In the third Ni site, Ni is bonded in a body-centered cubic geometry to four Ti and four Sn atoms. There are one shorter (2.58 Å) and three longer (2.59 Å) Ni–Sn bond lengths. In the fourth Ni site, Ni is bonded in a body-centered cubic geometry to four Ti and four Sn atoms. There are one shorter (2.57 Å) and three longer (2.58 Å) Ni–Sn bond lengths. In the fifth Ni site, Ni is bonded in a body-centered cubic geometry to three equivalent Sc, one Ti, and four Sn atoms. There are three shorter (2.59 Å) and one longer (2.75 Å) Ni–Sn bond lengths. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to six Ti and four Ni atoms. In the second Sn site, Sn is bonded in a 10-coordinate geometry to six Ti and four Ni atoms. In the third Sn site, Sn is bonded in a 10-coordinate geometry to six Ti and four Ni atoms. In the fourth Sn site, Sn is bonded in a distorted q6 geometry to three equivalent Sc, three equivalent Ti, and four Ni atoms. In the fifth Sn site, Sn is bonded in a 10-coordinate geometry to three equivalent Sc, three equivalent Ti, and four Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr4Sc(NiSn)5 by Materials Project

ScZr4(NiSn)5 is half-Heusler-derived structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Sc is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are one shorter (2.68 Å) and three longer (2.70 Å) Sc–Ni bond lengths. There are three shorter (3.08 Å) and three longer (3.10 Å) Sc–Sn bond lengths. There are four inequivalent Zr sites. In the first Zr site, Zr is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are three shorter (2.67 Å) and one longer (2.70 Å) Zr–Ni bond lengths. There are three shorter (3.09 Å) and three longer (3.11 Å) Zr–Sn bond lengths. In the second Zr site, Zr is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are three shorter (2.68 Å) and one longer (2.69 Å) Zr–Ni bond lengths. There are three shorter (3.09 Å) and three longer (3.10 Å) Zr–Sn bond lengths. In the third Zr site, Zr is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. All Zr–Ni bond lengths are 2.68 Å. There are three shorter (3.09 Å) and three longer (3.10 Å) Zr–Sn bond lengths. In the fourth Zr site, Zr is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are one shorter (2.66 Å) and three longer (2.68 Å) Zr–Ni bond lengths. There are three shorter (3.09 Å) and three longer (3.11 Å) Zr–Sn bond lengths. There are five inequivalent Ni sites. In the first Ni site, Ni is bonded in a body-centered cubic geometry to one Sc, three equivalent Zr, and four Sn atoms. There are one shorter (2.66 Å) and three longer (2.69 Å) Ni–Sn bond lengths. In the second Ni site, Ni is bonded in a body-centered cubic geometry to four Zr and four Sn atoms. All Ni–Sn bond lengths are 2.68 Å. In the third Ni site, Ni is bonded in a body-centered cubic geometry to four Zr and four Sn atoms. All Ni–Sn bond lengths are 2.68 Å. In the fourth Ni site, Ni is bonded in a body-centered cubic geometry to four Zr and four Sn atoms. There are three shorter (2.68 Å) and one longer (2.69 Å) Ni–Sn bond lengths. In the fifth Ni site, Ni is bonded in a body-centered cubic geometry to three equivalent Sc, one Zr, and four Sn atoms. There are three shorter (2.67 Å) and one longer (2.70 Å) Ni–Sn bond lengths. There are five inequivalent Sn sites. In the first Sn site, Sn is bonded in a distorted q6 geometry to three equivalent Sc, three equivalent Zr, and four Ni atoms. In the second Sn site, Sn is bonded in a distorted q6 geometry to six Zr and four Ni atoms. In the third Sn site, Sn is bonded in a distorted q6 geometry to six Zr and four Ni atoms. In the fourth Sn site, Sn is bonded in a distorted q6 geometry to three equivalent Sc, three equivalent Zr, and four Ni atoms. In the fifth Sn site, Sn is bonded in a distorted q6 geometry to six Zr and four Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Dy2NiSn6 by Materials Project

Dy2NiSn6 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Dy is bonded in a 10-coordinate geometry to ten Sn atoms. There are a spread of Dy–Sn bond distances ranging from 3.19–3.45 Å. Ni is bonded in a body-centered cubic geometry to eight Sn atoms. There are four shorter (2.71 Å) and four longer (2.72 Å) Ni–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Dy, two equivalent Ni, and five Sn atoms. There are one shorter (3.12 Å) and four longer (3.13 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 4-coordinate geometry to six equivalent Dy and two equivalent Sn atoms. Both Sn–Sn bond lengths are 2.99 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to two equivalent Dy, two equivalent Ni, and four equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScTi(NiSn)2 by Materials Project

ScTi(NiSn)2 is half-Heusler-derived structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Sc is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. There are three shorter (2.64 Å) and one longer (2.67 Å) Sc–Ni bond lengths. There are three shorter (3.04 Å) and three longer (3.06 Å) Sc–Sn bond lengths. Ti is bonded in a 4-coordinate geometry to four Ni and six Sn atoms. All Ti–Ni bond lengths are 2.59 Å. There are three shorter (2.98 Å) and three longer (3.01 Å) Ti–Sn bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a body-centered cubic geometry to one Sc, three equivalent Ti, and four Sn atoms. There are one shorter (2.53 Å) and three longer (2.61 Å) Ni–Sn bond lengths. In the second Ni site, Ni is bonded in a body-centered cubic geometry to three equivalent Sc, one Ti, and four Sn atoms. There are three shorter (2.60 Å) and one longer (2.76 Å) Ni–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to three equivalent Sc, three equivalent Ti, and four Ni atoms. In the second Sn site, Sn is bonded in a distorted q6 geometry to three equivalent Sc, three equivalent Ti, and four Ni atoms.

36 MATERIALS SCIENCE↗