Crystal field contributions to the specific heat of ErBa2Cu3O7
By using the sets of crystal field parameters recently deduced by Allenspach et al. for ErBa2Cu3Ox (6 < x < 7) from inelastic neutron scattering experiments, the crystal field contribution of the Er ion to the low-temperature specific heat has been calculated at zero field and at a field of 5 T applied parallel and perpendicular to the c axis. The calculated results are compared with available specific-heat data for a sintered polycrystalline sample and found to be in close agreement with the experimental results. © 1992.