  We investigate the lattice dynamics and thermodynamics of nonmagnetic bcc
vanadium as a function of temperature and pressure, using the first principles
linear response linear-muffin-tin-orbital method. The calculated phonon density
of states (DOS) show strong temperature dependence, different from inelastic
neutron scattering measurements where the phonon DOS show little change from
room temperature up to 1273 K. We obtain the Helmholtz free energy including
both electronic and phonon contributions and calculate various equation of
state properties such as the bulk modulus and the thermal expansion
coefficient. A detailed comparison has been made with available experimental
measurements.
