Hf3Fe4Sn4 and Hf9Fe4-xSn10+x: Two stannide intermetallics with low-dimensional iron sublattices

Nicholas P. Calta; Mercouri G. Kanatzidis

doi:10.1016/j.jssc.2015.12.017

Hf₃Fe₄Sn₄ and Hf₉Fe_4-xSn_10+x: Two stannide intermetallics with low-dimensional iron sublattices

Nicholas P. Calta, Mercouri G. Kanatzidis^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

This article reports two new Hf-rich intermetallics synthesized using Sn flux: Hf₃Fe₄Sn₄ and Hf₉Fe_4-xSn_10+x. Hf₃Fe₄Sn₄ adopts an ordered variant the Hf₃Cu₈ structure type in orthorhombic space group Pnma with unit cell edges of a=8.1143(5) Å, b=8.8466(5) Å, and c=10.6069(6) Å. Hf₉Fe_4-xSn_10+x, on the other hand, adopts a new structure type in Cmc2₁ with unit cell edges of a=5.6458(3) Å, b=35.796(2) Å, and c=8.88725(9) Å for x=0. It exhibits a small amount of phase width in which Sn substitutes on one of the Fe sites. Both structures are fully three-dimensional and are characterized by pseudo one- and two-dimensional networks of Fe-Fe homoatomic bonding. Hf₉Fe_4-xSn_10+x exhibits antiferromagnetic order at T_N=46(2) K and its electrical transport behavior indicates that it is a normal metal with phonon-dictated resistivity. Hf₃Fe₄Sn₄ is also an antiferromagnet with a rather high ordering temperature of T_N=373(5) K. Single crystal resistivity measurements indicate that Hf₃Fe₄Sn₄ behaves as a Fermi liquid at low temperatures, indicating strong electron correlation.

Original language	English (US)
Pages (from-to)	130-137
Number of pages	8
Journal	Journal of Solid State Chemistry
Volume	236
DOIs	https://doi.org/10.1016/j.jssc.2015.12.017
State	Published - Apr 1 2016

Funding

This work made use of the EPIC facility (NU ANCE Center-Northwestern University), which has received support from the MRSEC program ( NSF DMR-1121262 ) at the Materials Research Center; the International Institute for Nanotechnology (IIN); and the State of Illinois, through the IIN. The work at Argonne National Laboratory was supported by the U.S. Department of Energy , Office of Science, Materials Sciences and Engineering. We acknowledge Prof. Danna Freedman and Samantha Clarke for assistance with magnetic measurements, which were supported by Northwestern University’s International Institute for Nanotechnology and the State of Illinois Department of Commerce and Economic Opportunity ( DCEO ) Award ( 10-203031 ).

Keywords

Flux synthesis
Intermetallic compounds
Magnetism
X-ray crystallography

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jssc.2015.12.017

Cite this

@article{11cd739c3e5446cfb35c79ebb9e4b8fb,

title = "Hf3Fe4Sn4 and Hf9Fe4-xSn10+x: Two stannide intermetallics with low-dimensional iron sublattices",

abstract = "This article reports two new Hf-rich intermetallics synthesized using Sn flux: Hf3Fe4Sn4 and Hf9Fe4-xSn10+x. Hf3Fe4Sn4 adopts an ordered variant the Hf3Cu8 structure type in orthorhombic space group Pnma with unit cell edges of a=8.1143(5) {\AA}, b=8.8466(5) {\AA}, and c=10.6069(6) {\AA}. Hf9Fe4-xSn10+x, on the other hand, adopts a new structure type in Cmc21 with unit cell edges of a=5.6458(3) {\AA}, b=35.796(2) {\AA}, and c=8.88725(9) {\AA} for x=0. It exhibits a small amount of phase width in which Sn substitutes on one of the Fe sites. Both structures are fully three-dimensional and are characterized by pseudo one- and two-dimensional networks of Fe-Fe homoatomic bonding. Hf9Fe4-xSn10+x exhibits antiferromagnetic order at TN=46(2) K and its electrical transport behavior indicates that it is a normal metal with phonon-dictated resistivity. Hf3Fe4Sn4 is also an antiferromagnet with a rather high ordering temperature of TN=373(5) K. Single crystal resistivity measurements indicate that Hf3Fe4Sn4 behaves as a Fermi liquid at low temperatures, indicating strong electron correlation.",

keywords = "Flux synthesis, Intermetallic compounds, Magnetism, X-ray crystallography",

author = "Calta, {Nicholas P.} and Kanatzidis, {Mercouri G.}",

year = "2016",

month = apr,

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doi = "10.1016/j.jssc.2015.12.017",

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T1 - Hf3Fe4Sn4 and Hf9Fe4-xSn10+x

T2 - Two stannide intermetallics with low-dimensional iron sublattices

AU - Calta, Nicholas P.

AU - Kanatzidis, Mercouri G.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - This article reports two new Hf-rich intermetallics synthesized using Sn flux: Hf3Fe4Sn4 and Hf9Fe4-xSn10+x. Hf3Fe4Sn4 adopts an ordered variant the Hf3Cu8 structure type in orthorhombic space group Pnma with unit cell edges of a=8.1143(5) Å, b=8.8466(5) Å, and c=10.6069(6) Å. Hf9Fe4-xSn10+x, on the other hand, adopts a new structure type in Cmc21 with unit cell edges of a=5.6458(3) Å, b=35.796(2) Å, and c=8.88725(9) Å for x=0. It exhibits a small amount of phase width in which Sn substitutes on one of the Fe sites. Both structures are fully three-dimensional and are characterized by pseudo one- and two-dimensional networks of Fe-Fe homoatomic bonding. Hf9Fe4-xSn10+x exhibits antiferromagnetic order at TN=46(2) K and its electrical transport behavior indicates that it is a normal metal with phonon-dictated resistivity. Hf3Fe4Sn4 is also an antiferromagnet with a rather high ordering temperature of TN=373(5) K. Single crystal resistivity measurements indicate that Hf3Fe4Sn4 behaves as a Fermi liquid at low temperatures, indicating strong electron correlation.

AB - This article reports two new Hf-rich intermetallics synthesized using Sn flux: Hf3Fe4Sn4 and Hf9Fe4-xSn10+x. Hf3Fe4Sn4 adopts an ordered variant the Hf3Cu8 structure type in orthorhombic space group Pnma with unit cell edges of a=8.1143(5) Å, b=8.8466(5) Å, and c=10.6069(6) Å. Hf9Fe4-xSn10+x, on the other hand, adopts a new structure type in Cmc21 with unit cell edges of a=5.6458(3) Å, b=35.796(2) Å, and c=8.88725(9) Å for x=0. It exhibits a small amount of phase width in which Sn substitutes on one of the Fe sites. Both structures are fully three-dimensional and are characterized by pseudo one- and two-dimensional networks of Fe-Fe homoatomic bonding. Hf9Fe4-xSn10+x exhibits antiferromagnetic order at TN=46(2) K and its electrical transport behavior indicates that it is a normal metal with phonon-dictated resistivity. Hf3Fe4Sn4 is also an antiferromagnet with a rather high ordering temperature of TN=373(5) K. Single crystal resistivity measurements indicate that Hf3Fe4Sn4 behaves as a Fermi liquid at low temperatures, indicating strong electron correlation.

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