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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.

 Thuy N.P., Hien N.T., Hien T.D., Franse J.J.M.
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  Từ khóa : Electric Fields; Neutrons - Scattering; Rare Earth Compounds; Crystalline Electric Field; Erbium Ion; Inelastic Neutron Scattering Experiments; Low Temperature Specific Heat; Oxide Superconductors; High Temperature Superconductors