Electron-Phonon Coupling and Electron Heat Capacity in Metals at High
Electron Temperatures
In the table below you can find files with tabulated data on the temperature dependences of
the electron heat capacity and the electron-phonon coupling factor, given for a range of
electron temperatures that are typically realized in femtosecond laser processing of
materials. The data is calculated for several metals based on their electron density of states,
taking into account the effect of thermal excitation of electrons located below the Fermi
level. You can find detailed information on the method used in the calculations and
discussion of the results in the references listed below.
Material
el-ph coupling, G(Te) Electron heat capacity, Ce(Te)
Gold
G_Au.dat
Ce_Au.dat
Nickel
G_Ni.dat
Ce_Ni.dat
Copper
G_Cu.dat
Ce_Cu.dat
Platinum
G_Pt.dat
Ce_Pt.dat
Silver
G_Ag.dat
Ce_Ag.dat
Aluminum
G_Al.dat
Ce_Al.dat
Tungsten
G_W.dat
Ce_W.dat
Molybdenum
G_Mo.dat
Ce_Mo.dat
Titanium
G_Ti.dat
Ce_Ti.dat
The first column is the electron temperature in the unit of 104K.
G(Te) and Ce(Te) are shown in the second column in the unit of 1017Wm-3K-1 and 105Jm-3K-1,
respectively.
If you use this data in your calculations or in interpretation of your experimental data, we
would be interested to learn about your results - please e-mail Zhibin Lin or Leonid
Zhigilei.
References:
Z. Lin, V. Celli, and L. V. Zhigilei, Electron-phonon coupling and electron heat capacity of
metals under conditions of laser-induced electron-phonon nonequilibrium, Phys. Rev. B,
submitted, 2007.
Z. Lin and L. V. Zhigilei, Temperature dependences of the electron-phonon coupling, electron
heat capacity and thermal conductivity in Ni under femtosecond laser irradiation, Appl. Surf. Sci.
253, 6295-6300, 2007.
Full Text: PDF (297 kB)
Z. Lin and L. V. Zhigilei, Thermal excitation of d band electrons in Au: implications for laserinduced phase transformations, High-Power Laser Ablation VI, edited by C. R. Phipps, Proc.
SPIE 6261, 62610U, 2006.
Full Text: PDF (683 kB)