Ternary lithium nitridocuprates, Li3-x-yCuxN: Crystal growth, bulk synthesis, structure and magnetic properties

Alexandra G. Gordon, Duncan H. Gregory, Alexander J. Blake, David P. Weston, Martin O. Jones

研究成果: ジャーナルへの寄稿学術誌査読

23 被引用数 (Scopus)

抄録

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-yyCuxN (□=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.

本文言語英語
ページ(範囲)973-981
ページ数9
ジャーナルInternational Journal of Inorganic Materials
3
7
DOI
出版ステータス出版済み - 2001

!!!All Science Journal Classification (ASJC) codes

  • 材料化学

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