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) 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.
| Original language | English |
|---|---|
| Pages (from-to) | 130-137 |
| Number of pages | 8 |
| Journal | Journal of Solid State Chemistry |
| Volume | 236 |
| DOIs | |
| Publication status | Published - Apr 1 2016 |
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Keywords
- Flux synthesis
- Intermetallic compounds
- Magnetism
- X-ray crystallography
ASJC Scopus subject areas
- Condensed Matter Physics
- Inorganic Chemistry
- Physical and Theoretical Chemistry
- Ceramics and Composites
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
Cite this
Hf3Fe4Sn4 and Hf9Fe4-xSn10+x : Two stannide intermetallics with low-dimensional iron sublattices. / Calta, Nicholas P.; Kanatzidis, Mercouri G.
In: Journal of Solid State Chemistry, Vol. 236, 01.04.2016, p. 130-137.Research output: Contribution to journal › Article
}
TY - JOUR
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.
KW - Flux synthesis
KW - Intermetallic compounds
KW - Magnetism
KW - X-ray crystallography
UR - http://www.scopus.com/inward/record.url?scp=84961182000&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84961182000&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2015.12.017
DO - 10.1016/j.jssc.2015.12.017
M3 - Article
AN - SCOPUS:84961182000
VL - 236
SP - 130
EP - 137
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
ER -