Equation of State of Single Crystal Cubic Boron Phosphide

Y. Le Godec (1) , M. Mezouar (2) , O. O. Kurakevych (1) , P. Munsch (1) , U. Nwagwu (3) , J. H. Edgar (3) , V. L. Solozhenko (4)

1 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
2 ESRF - European Synchrotron Radiation Facility
3 Department of Chemical Engineering
4 LSPM - Laboratoire des Sciences des Procédés et des Matériaux

The 300 K equation of state of cubic (zinc blende) boron phosphide BP has been studied by in situ single crystal X ray diffraction with synchrotron radiation up to 55 GPa. The measurements have been performed under quasi hydrostatic conditions using a Ne pressure medium in a diamond anvil cell. A fit of the experimental p V data to the Vinet equation of state yields the bulk modulus B0 of 179(1) GPa with its pressure derivative of 3.3(1). These values are in a good agreement with previous elastic measurements, as well as with semiempirical estimations.

Mots clés: boron phosphide; high pressure; single crystal; equation of state

Domaines: Autre [cond-mat.other]

Y. Le Godec, M. Mezouar, O. O. Kurakevych, P. Munsch, U. Nwagwu, et al.. Equation of State of Single Crystal Cubic Boron Phosphide. Journal of Superhard Materials, 2014, 36 (1), pp.61-64. ⟨10.3103/S1063457614010092⟩. ⟨hal-00983390⟩