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 language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Jan 1 2003|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics