High-pressure synthesis and study of low-compressibility molybdenum nitride (MoN and MoN1−x) phases

Emmanuel Soignard, Paul F. McMillan, Tracey D. Chaplin, Sharif M. Farag, Craig L. Bull, Maddury S. Somayazulu, Kurt Leinenweber

Research output: Contribution to journalArticle

58 Scopus citations

Abstract

We report the compressibility of the stoichiometric hexagonal δ phase of MoN that is a well-known hard material that becomes superconducting below Tc = 12 K. The measured bulk modulus is K0 = 345(9) GPa and K0=3.5(3). We also report the compressibility of the non-stoichiometric cubic B1 structured γ − Mo2N phase, that has a lower bulk modulus [K0 = 301(7) GPa, assuming K0=4]. The difference in bulk modulus is due to the difference in structure and the cohesive energy between the two phases.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number13
DOIs
StatePublished - Jan 1 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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