On the calculation of temperature dependence of metal surface energy

On the basis of isotropic model of ''jelly'' metal and parametric function for electron distribution on metal-vacuum interface temperature coefficients of the metal surface energy at Tsub(m) are calculated. The calculation results agree satisfactorily with the known experimental data. Relatively high values dσ/dT of transition metals are explained by anharmonicity of ion vibrations in surface layer and increased energy-level density on Fermi level