Fig. 4. (a) Average non-adiabatic energy loss with the TDPT and LDFA models as a function of translational energy for H2 scattering from Ag(111) and Cu(111) (approximately converted from Fig. 4 in ref. 15 by energy conservation). (b) Mean energy losses along translational (Z) and vibrational coordinate (r) as a function of translational energy for H2. The variation of square of velocity (solid lines) in Z (|Ṙz|2, panel c) and r (|Ṙr|2, panel d) direction along with the corresponding friction coefficients (dotted lines), as a function of time for a representative trajectory with the same initial conditions at translational energy of 0.3 eV.
