  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.
