TY - JOUR
T1 - Ternary lithium nitridocuprates, Li3-x-yCuxN
T2 - Crystal growth, bulk synthesis, structure and magnetic properties
AU - Gordon, Alexandra G.
AU - Gregory, Duncan H.
AU - Blake, Alexander J.
AU - Weston, David P.
AU - Jones, Martin O.
N1 - Funding Information:
The authors thank Dr. P.A. Salyer for assistance with magnetic measurements. D.H.G. thanks the EPSRC for the award of an Advanced Research Fellowship and for funding this work. The authors also acknowledge the University of Nottingham for a studentship for A.G.G.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2001
Y1 - 2001
N2 - Systematic studies within the ternary Li-Cu-N system have examined the effects of varying starting materials, transition metal stoichiometry, reaction temperature/duration and cooling rate on crystal growth and bulk phase formation of ternary nitridocuprates. Resulting lithium transition metal compounds, Li3-x-y□yCuxN (□=Li vacancy), have been characterised by single crystal and powder XRD. The maximum copper substituent level (x≈0.45) and vacancy level, y, appear insensitive to reaction temperature. Both vacancies and copper are disordered with Li when reaction mixtures are quenched (α-Li3N-type: P6/mmm, α≈3.7 Å, c≈3.8 Å, Z=1), whereas evidence of copper and/or vacancy ordering exists on slow cooling. Morphology of crystallites has been evaluated by SEM and magnetic properties have been investigated using SQUID magnetometry. Magnetic data show compounds exhibit temperature dependent paramagnetism in contrast to the parent nitride, Li3N.
AB - Systematic studies within the ternary Li-Cu-N system have examined the effects of varying starting materials, transition metal stoichiometry, reaction temperature/duration and cooling rate on crystal growth and bulk phase formation of ternary nitridocuprates. Resulting lithium transition metal compounds, Li3-x-y□yCuxN (□=Li vacancy), have been characterised by single crystal and powder XRD. The maximum copper substituent level (x≈0.45) and vacancy level, y, appear insensitive to reaction temperature. Both vacancies and copper are disordered with Li when reaction mixtures are quenched (α-Li3N-type: P6/mmm, α≈3.7 Å, c≈3.8 Å, Z=1), whereas evidence of copper and/or vacancy ordering exists on slow cooling. Morphology of crystallites has been evaluated by SEM and magnetic properties have been investigated using SQUID magnetometry. Magnetic data show compounds exhibit temperature dependent paramagnetism in contrast to the parent nitride, Li3N.
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U2 - 10.1016/S1466-6049(01)00081-2
DO - 10.1016/S1466-6049(01)00081-2
M3 - Article
AN - SCOPUS:0035216774
VL - 3
SP - 973
EP - 981
JO - International Journal of Inorganic Materials
JF - International Journal of Inorganic Materials
SN - 1466-6049
IS - 7
ER -