TY - JOUR
T1 - Synthesis, Structure, and Magnetic Properties of the New Ternary Nitride BaHfN2and of the BaHf1-xZrxN2Solid Solution
AU - Gregory, D. H.
AU - Barker, M. G.
AU - Edwards, P. P.
AU - Slaski, M.
AU - Siddons, D. J.
N1 - Funding Information:
We thank the EPSRC for supporting this work, for the postdoctoral fellowship for D.H.G., and recently for the award of an Advanced Fellowship to D.H.G. We also thank The Royal Society for the award of a Lever-hulme Senior Reserach Fellowship to P.P.E.
PY - 1998/4
Y1 - 1998/4
N2 - The new ternary nitrides BaHf1-xZrxN2(0≤x≤1) have been synthesized by the solid state reaction of the binary nitrides Ba3N2, HfN, and ZrN and characterized by powder X-ray diffraction. The crystal structure of the end member, BaHfN2, has been refined from powder data. The nitridohafnate crystallizes in the tetragonal space groupP4/nmm(a=4.1279(1) Å,c=8.3816(4) Å,Z=2) and is isostructural with the oxide KCoO2. Hafnium is coordinated to five nitrogens in a distorted square base pyramidal geometry, forming layers of edge-sharing pyramids which stack along thecaxis. Barium is situated between the Hf-N layers and is coordinated to five nitrogen atoms. Samples exhibit temperature-dependent paramagnetism between approximately 8 and 293 K and become superconducting below 8 K.
AB - The new ternary nitrides BaHf1-xZrxN2(0≤x≤1) have been synthesized by the solid state reaction of the binary nitrides Ba3N2, HfN, and ZrN and characterized by powder X-ray diffraction. The crystal structure of the end member, BaHfN2, has been refined from powder data. The nitridohafnate crystallizes in the tetragonal space groupP4/nmm(a=4.1279(1) Å,c=8.3816(4) Å,Z=2) and is isostructural with the oxide KCoO2. Hafnium is coordinated to five nitrogens in a distorted square base pyramidal geometry, forming layers of edge-sharing pyramids which stack along thecaxis. Barium is situated between the Hf-N layers and is coordinated to five nitrogen atoms. Samples exhibit temperature-dependent paramagnetism between approximately 8 and 293 K and become superconducting below 8 K.
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U2 - 10.1006/jssc.1997.7686
DO - 10.1006/jssc.1997.7686
M3 - Article
AN - SCOPUS:0002876348
SN - 0022-4596
VL - 137
SP - 62
EP - 70
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -