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Synthesis and low‐temperature transport properties of polycrystalline Ni S e 2
Author(s) -
Ge ZhenHua,
Wei Kaya,
Nolas George S.
Publication year - 2013
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201330207
Subject(s) - crystallite , spark plasma sintering , materials science , crystallinity , electrical resistivity and conductivity , thermal conduction , sintering , thermal conductivity , single crystal , conductivity , charge carrier , mineralogy , composite material , analytical chemistry (journal) , crystallography , optoelectronics , metallurgy , chemistry , electrical engineering , engineering , chromatography
Polycrystalline NiSe 2 was synthesized via a direct solution reaction method, followed by densification by spark plasma sintering. Structural and low‐temperature transport properties measurements were employed for characterization. The low temperature thermal conductivity is reported for the first time and is dominated by heat conduction by charge carriers. The polycrystalline NiSe 2 has a low electrical resistivity, lower than that reported for single crystal NiSe 2 , suggesting a very high crystallinity for our polycrystalline specimen. These results are discussed in light of the potential applications for this material.