Phonon drag thermopower and energy loss rate in single and bilayer graphene due to piezoelectric surface acoustic phonons in Bloch-Gruneisen regime

The closed time path Green’s function method is used to derive the nonequilibrium distribution functions of acoustic phonons and excitations of hot electrons, renormalized by the electron-phonon interaction in the random phase approximation, and to calculate the power dissipation of hot electrons. It is shown that the energy loss channel of hot electrons would vanish unless a relaxation rate corresponding to the decay of one acoustic phonon into two or more bare acoustic phonons via the anharmonic interaction is explicitly included in the phonon propagator. The effect due to the anharmonic interaction on the energy loss rate of hot electrons has also been studied.

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A Non-Equilibrium Approach to Coupled-Mode-Induced Hot-Electron Energy Loss Rate

Communications in Theoretical Physics ◽

10.1088/0253-6102/19/4/403 ◽

1993 ◽

Vol 19 (4) ◽

pp. 403-408

Author(s):

M.W. Wu ◽

X.L. Lei

Keyword(s):

Energy Loss ◽

Electron Energy ◽

Loss Rate ◽

Hot Electron ◽

Energy Loss Rate ◽

Coupled Mode ◽

Equilibrium Approach ◽

Electron Energy Loss ◽

Non Equilibrium

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Research on Energy Loss Rate in Low-Jet Assisted Laser Ablation Composite Processing

Applied laser ◽

10.3788/al20143406.589 ◽

2014 ◽

Vol 34 (6) ◽

pp. 589-592

Author(s):

张程 Zhang Cheng ◽

陈雪辉 Chen Xuehui ◽

袁根福 Yuan Genfu

Keyword(s):

Laser Ablation ◽

Energy Loss ◽

Loss Rate ◽

Composite Processing ◽

Energy Loss Rate

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Magnetic and temperature effects on the energy loss rate of test ions

Journal of Plasma Physics ◽

10.1017/s0022377800000623 ◽

1983 ◽

Vol 29 (1) ◽

pp. 131-137 ◽

Cited By ~ 1

Author(s):

M. H. A. Hassan ◽

P. H. Sakanaka

Keyword(s):

Magnetic Field ◽

External Magnetic Field ◽

Energy Loss ◽

Temperature Effects ◽

Loss Rate ◽

Temperature Ratio ◽

Injection Angle ◽

Energy Loss Rate ◽

Ion Plasma ◽

The Magnetic Field

The energy loss rate, Ė, of test ions injected with velocity V into a Maxwellian electron-ion plasma in the presence of an external magnetic field, is studied. Most of the integrals appearing in the expression for Ė are evaluated analytically and the remaining integrals are evaluated numerically for various values of the parameters η = Ωe / ωe, x = V/ve, r = Te/Ti, and the angle of injection θ. It is shown that the effect of the magnetic field is rather small except for η > 1, the temperature ratio is important for small x (x ≤ 0·2), and the injection angle is not important.

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