Abstract
The lattice vibrational spectrum of vanadium calculated from the differential inelastic scattering cross section for slow neutrons is presented. The lattice specific heat and corresponding Debye temperatures are shown. The lattice specific heat above 150 deg K derived from neutron data is compared with caloric measurements, and it is found that the electronic specific heat constant found at low temperature is not valid at higher temperatures. It is proposed that this effect might be attributed to the renormalization of the free energy of electrons, which is caused by the electron-phonon interaction. To give a qualitative justification of this proposal the expression for the free energy of the electrons was evaluated. (C.E.S.)
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