scholarly journals Continuum-atomistic simulation of picosecond laser heating of copper with electron heat capacity from ab initio calculation

2016 ◽  
Vol 648 ◽  
pp. 109-113 ◽  
Author(s):  
Pengfei Ji ◽  
Yuwen Zhang
Keyword(s):  
Heat Capacity ◽  
Ab Initio ◽  
Laser Heating ◽  
Ab Initio Calculation ◽  
Atomistic Simulation ◽  
Picosecond Laser ◽  
Electron Heat Capacity ◽  
Electron Heat

Influence of Inter- and Intraband Transitions to Electron Temperature Decay in Noble Metals After Short-Pulsed Laser Heating

2010 ◽  
Vol 132 (12) ◽  
Author(s):  
Patrick E. Hopkins
Keyword(s):  
Heat Capacity ◽  
Electron Temperature ◽  
Noble Metals ◽  
Coupling Factor ◽  
Phonon Coupling ◽  
Electron Heat Capacity ◽  
Temperature Decay ◽  
Electron Heat ◽  
Electron Phonon Coupling ◽  
Pulsed Laser Heating

This work examines the effects of photonically induced interband excitations from the d-band to states at the Fermi energy on the electron temperature decay in noble metals. The change in the electron population in the d-band and the conduction band causes a change in electron heat capacity and electron-phonon coupling factor. In noble metals, due to the large d-band to Fermi energy separation, the contributions to electron heat capacity and electron-phonon coupling factor of intra- and interband transitions can be separated. The two temperature model describing electron-phonon heat transfer after short-pulsed laser heating is solved using the expressions for heat capacity and electron-phonon coupling factor after intra- and interband excitations, and the predicted electron temperature change of the intra- and interband excited electrons are examined. A critical fluence value is defined that represents the absorbed fluence needed to fill all available states at a given photon energy above the Fermi level. At high absorbed laser fluences and pulse energies greater than the interband transition threshold, the interband and intraband contributions to thermophysical properties differ and are shown to affect temporal electron temperature profiles.

Isotopic dependence of the heat capacity of c-C, Si, and Ge: an ab initio calculation

2004 ◽  
Vol 131 (3-4) ◽  
pp. 229-233 ◽  
Author(s):  
M Sanati ◽  
S.K Estreicher ◽  
M Cardona
Keyword(s):  
Heat Capacity ◽  
Ab Initio ◽  
Ab Initio Calculation ◽  
Isotopic Dependence

Low temperature electron heat capacity of transition metal borides with narrow energy d bands

1986 ◽  
Vol 117 (1-2) ◽  
pp. 319-322 ◽  
Author(s):  
A.A Povzner ◽  
A.L Zilichikhis ◽  
Sh.Sh Abel'skii ◽  
E.A Knyshev
Keyword(s):  
Heat Capacity ◽  
Low Temperature ◽  
Transition Metal ◽  
Electron Heat Capacity ◽  
Electron Heat ◽  
Metal Borides ◽  
Temperature Electron

Electron–phonon coupling factor and electron heat capacity of 6H-SiC

2021 ◽  
pp. 1-8
Author(s):  
Wenlong Liao ◽  
Chaohui He ◽  
Huan He ◽  
Shang Tian ◽  
Yurong Bai
Keyword(s):  
Heat Capacity ◽  
Coupling Factor ◽  
Phonon Coupling ◽  
Electron Heat Capacity ◽  
Electron Heat ◽  
Electron Phonon Coupling

Electron heat capacity and moments of phonon density of states of HoBa2Cu3O7−δ

1996 ◽  
Vol 262 (1-2) ◽  
pp. 143-148 ◽  
Author(s):  
V.N. Naumov ◽  
G.I. Frolova ◽  
E.B. Amitin ◽  
V.E. Fedorov ◽  
P.P. Samoilov
Keyword(s):  
Heat Capacity ◽  
Density Of States ◽  
Phonon Density ◽  
Phonon Density Of States ◽  
Electron Heat Capacity ◽  
Electron Heat
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