The role of electron-phonon coupling in femtosecond laser damage of metals

1999 ◽  
Vol 69 (7) ◽  
pp. S99-S107 ◽  
Author(s):  
S.-S. Wellershoff ◽  
J. Hohlfeld ◽  
J. Güdde ◽  
E. Matthias
Keyword(s):  
Femtosecond Laser ◽  
Laser Damage ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

The role of electron–phonon coupling in femtosecond laser damage of metals

1999 ◽  
Vol 69 (S1) ◽  
pp. S99-S107 ◽  
Author(s):  
S.-S. Wellershoff ◽  
J. Hohlfeld ◽  
J. Güdde ◽  
E. Matthias
Keyword(s):  
Femtosecond Laser ◽  
Laser Damage ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

Role of electron-phonon coupling in femtosecond laser damage of metals

1998 ◽  
Author(s):  
Sebastian S. Wellershoff ◽  
Jens Gudde ◽  
Julius Hohlfeld ◽  
Juergen G. Muller ◽  
Eckart Matthias
Keyword(s):  
Femtosecond Laser ◽  
Laser Damage ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

Role of electron–phonon coupling in thermal conductivity of metallic nanofluids

2019 ◽  
Vol 52 (48) ◽  
pp. 485302 ◽  
Author(s):  
Dong-Xing Song ◽  
Yu-Feng Zhang ◽  
Wei-Gang Ma ◽  
Xing Zhang
Keyword(s):  
Thermal Conductivity ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

scholarly journals Electron-phonon coupling and superconductivity in the (4/3)-monolayer of Pb on Si(111): Role of spin-orbit interaction

2018 ◽  
Vol 97 (19) ◽  
Author(s):  
I. Yu. Sklyadneva ◽  
R. Heid ◽  
K.-P. Bohnen ◽  
P. M. Echenique ◽  
E. V. Chulkov
Keyword(s):  
Orbit Interaction ◽  
Spin Orbit ◽  
Phonon Coupling ◽  
Spin Orbit Interaction ◽  
Electron Phonon Coupling

Influence of Electron-Phonon Coupling Coefficient on Properties in Femtosecond Laser Ablation

2015 ◽  
Vol 814 ◽  
pp. 144-149 ◽  
Author(s):  
Ran Xiang ◽  
Xin Yu Tan ◽  
Hui Li Wei
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Electron Temperature ◽  
Coupling Coefficient ◽  
Femtosecond Laser Ablation ◽  
High Energy ◽  
Rapid Decline ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Coupling Time

Thermodynamics effects generated by femtosecond laser ablation are very important. In this work, the numerical simulation of high-energy femtosecond laser ablation especially the electro-phonon coupling coefficient influence of high-energy femtosecond laser ablation on metal target was studied. A new two-temperature model (TTM) which considered the effects of electron density of states (DOS) on electron-phonon coupling coefficient was first established, then the temperature evolvement for electron and lattice in different electro-phonon coupling coefficient G, and the effect of G on electron temperature and lattice temperature and electron-phonon coupling time were emphatically analyzed. The results showed that the electron-phonon coupling coefficient strongly affected the surface electron temperature and coupling time in the femtosecond laser ablation. The smaller the electron-phonon coupling coefficient was, the more the energy transmission from electronic to ion subsystem. As a result, the smaller the value of electron-phonon coupling coefficient, a more rapid decline for the temperature of electronic sub-system achieved. This work will offer help for the future investigation of material fabrication by femtosecond laser ablation.

Velocity renormalization in graphene: The role of trigonal warping and electron–phonon coupling effects

2017 ◽  
Vol 31 (30) ◽  
pp. 1750235 ◽  
Author(s):  
B. S. Kandemir ◽  
N. Gökçek
Keyword(s):  
Analytical Solution ◽  
Fermi Velocity ◽  
Combined Effects ◽  
Phonon Coupling ◽  
Strong Anisotropy ◽  
Energy Bands ◽  
Phonon Modes ◽  
Electron Phonon Coupling ◽  
Trigonal Warping

We investigate the combined effects of trigonal warping and electron–phonon interactions on the renormalization of the Fermi velocity in graphene. We present an analytical solution to the associated Fröhlich Hamiltonian describing the interaction of doubly degenerate-optical phonon modes of graphene with electrons in the presence of trigonal warp within the framework of Lee–Low–Pines theory. On the basis of our model, it is analytically shown that in addition to its renormalization, Fermi velocity exhibits strong anisotropy due to the trigonal warping. It is also found that in the regime where the trigonal warp starts, distortion of energy bands emerges due to electron–phonon coupling, and the bands exhibit strong anisotropy.

Extraordinary role of Zn in enhancing thermoelectric performance of Ga-doped n-type PbTe

2022 ◽  
Author(s):  
Zhong-zhen Luo ◽  
Songting Cai ◽  
Shiqiang Hao ◽  
Trevor Bailey ◽  
Yubo Luo ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Carrier Concentration ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Ga Doping ◽  
Role Of Zn

Although Ga doping can weaken the electron phonon coupling of n-type PbTe, Ga-doped PbTe has a relatively low carrier concentration (n) and high lattice thermal conductivity (κlat), resulting in a...

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