Layered ternary transition metal nitrides; synthesis, structure and physical properties

Duncan H. Gregory, Paul M. O'Meara, Alexandra G. Gordon, Daniel J. Siddons, Alexander J. Blake, Marten G. Barker, Thomas A. Hamor, Peter P. Edwards

Research output: Contribution to journalArticle

Abstract

Two-dimensional structures are an emerging class of materials within nitride chemistry. We report here our systematic studies of two groups of these layered compounds: 1 Lithium transition metal compounds, Li3-x-yyMxN (M = Co, Ni, Cu, □ = Li vacancy) and 2 ternary transition metal nitrides of general formulation AMN2 (A = alkaline earth metal, M = Ti, Zr, Hf). Compounds in class 1 are based on the hexagonal Li3N structure, unique to nitrides. Compounds in group 2, by contrast, crystallise with oxide structures (α-NaFeO2 or KCoO2). Specific and unusual synthetic methods have been developed to reproducibly prepare these compounds. Compounds in series 1 contain ordered or disordered Li vacancies at increased levels relative to the parent Li3N, itself a Li+ fast ion conductor. Nitrides in series 2 should be nominally diamagnetic (S = 0), yet magnetic measurements reveal behaviour seemingly inconsistent with this assumption.

Original languageEnglish
Pages (from-to)237-244
Number of pages8
JournalJournal of Alloys and Compounds
Volume317-318
DOIs
Publication statusPublished - Apr 12 2001
Externally publishedYes

Fingerprint

Nitrides
Transition metals
Physical properties
Vacancies
Alkaline Earth Metals
Transition metal compounds
Alkaline earth metals
Magnetic variables measurement
Lithium
Oxides
Ions

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Gregory, D. H., O'Meara, P. M., Gordon, A. G., Siddons, D. J., Blake, A. J., Barker, M. G., ... Edwards, P. P. (2001). Layered ternary transition metal nitrides; synthesis, structure and physical properties. Journal of Alloys and Compounds, 317-318, 237-244. https://doi.org/10.1016/S0925-8388(00)01340-2

Layered ternary transition metal nitrides; synthesis, structure and physical properties. / Gregory, Duncan H.; O'Meara, Paul M.; Gordon, Alexandra G.; Siddons, Daniel J.; Blake, Alexander J.; Barker, Marten G.; Hamor, Thomas A.; Edwards, Peter P.

In: Journal of Alloys and Compounds, Vol. 317-318, 12.04.2001, p. 237-244.

Research output: Contribution to journalArticle

Gregory, DH, O'Meara, PM, Gordon, AG, Siddons, DJ, Blake, AJ, Barker, MG, Hamor, TA & Edwards, PP 2001, 'Layered ternary transition metal nitrides; synthesis, structure and physical properties', Journal of Alloys and Compounds, vol. 317-318, pp. 237-244. https://doi.org/10.1016/S0925-8388(00)01340-2
Gregory, Duncan H. ; O'Meara, Paul M. ; Gordon, Alexandra G. ; Siddons, Daniel J. ; Blake, Alexander J. ; Barker, Marten G. ; Hamor, Thomas A. ; Edwards, Peter P. / Layered ternary transition metal nitrides; synthesis, structure and physical properties. In: Journal of Alloys and Compounds. 2001 ; Vol. 317-318. pp. 237-244.
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