Kinetic coefficients for d-band metals in two-temperature states created by femtosecond laser irradiation

摘要

Two-temperature thermal conductivity coefficient k and electron-ion coupling parameter a are obtained using Boltzmann kinetic equation in the relaxation time approximation. These coefficients are necessary for the quantitative description of the two-temperature state with hot electrons T_e » T_i created as result of absorption of femtosecond laser pulse. Simple, noble, and transition metals are considered. An influence of d-band electrons, which play a significant role, has been evaluated for two latter groups of metals.