Non-Equilibrium Magnetization Of Electron Gas In Alternating External Fields

2006 ◽  
Author(s):  
Valentyn M. Gokhfeld
Keyword(s):  
Electron Gas ◽  
External Fields ◽  
Equilibrium Magnetization ◽  
Non Equilibrium

The study of the plasmon modes of square atomic clusters based on the eigen-oscillation equation of charge under the free-electron gas model

2018 ◽  
Vol 32 (11) ◽  
pp. 1850139 ◽  
Author(s):  
Hong-Jie Xue ◽  
Reng-Lai Wu ◽  
Cheng-Xi Hu ◽  
Ming Zhang
Keyword(s):  
Electric Fields ◽  
Free Electron ◽  
Electron Gas ◽  
Plasmon Mode ◽  
Atomic Clusters ◽  
Equation Method ◽  
Electron Systems ◽  
External Fields ◽  
Oscillation Equation ◽  
Plasmon Modes

In atomic clusters, plasmon modes are generally gained by the resonant responses for external fields. However, these resonant methods still carry some defects: some plasmon modes may not have been found as that may not have been excited by the external fields. Recently, by employing the extended Hubbard model to describe electron systems of atomic clusters, we have presented the eigen-oscillation equation of charge to study plasmon modes. In this work, based on the free-electron gas model, we further explore the eigen-equation method. Under different external electric fields, some of the plasmon mode spectrums with obvious differences are found, which display the defects of the resonant methods. All the plasmon modes obtained by the resonant methods are predicted by the eigen-equation method. This effectively shows that the eigen-equation method is feasible and reliable in the process of finding plasmon. In addition, various kinds of plasmons are displayed by charge distributions, and the evolution features of plasmon with system parameters are gained by the energy absorption spectrum.

FLUCTUATIONS IN NON-EQUILIBRIUM ELECTRON GAS: EFFECT OF QUANTUM STATISTICS

2010 ◽  
Vol 09 (04) ◽  
pp. 373-385 ◽  
Author(s):  
R. KATILIUS ◽  
S. V. GANTSEVICH ◽  
V. D. KAGAN ◽  
M. I. MURADOV
Keyword(s):  
Electron Gas ◽  
Time Correlation ◽  
Electron Interaction ◽  
Electron Collisions ◽  
Equal Time ◽  
Exchange Effects ◽  
Coulomb Type ◽  
Gas Effect ◽  
Kinetic Diagram ◽  
Non Equilibrium

Here we develop a mathematical apparatus to describe quasi-classical fluctuations in a non-equilibrium electron gas with electron-electron collisions. We substantiate the method by deriving, from general principles of quantum kinetics, an equation recently proposed by us for an equal-time electron-electron correlation function. The derivation is performed using the kinetic diagram technique. In degenerate non-equilibrium gas, the theory predicts that there exists a specific equal-time correlation between electrons. Due to the prevalence of small-angle electron-electron scattering, the equation in question takes a rather simple and treatable form (the Coulomb-type electron-electron interaction stands out against the background of all other types of interaction as one that does not generate, in the framework of quasi-classical approach, any direct exchange effects).

scholarly journals Magnetization dynamics driven by non-equilibrium spin-orbit coupled electron gas

2015 ◽  
Vol 17 (5) ◽  
pp. 053012 ◽  
Author(s):  
Yong Wang ◽  
Wei-qiang Chen ◽  
Fu-Chun Zhang
Keyword(s):  
Electron Gas ◽  
Spin Orbit ◽  
Magnetization Dynamics ◽  
Non Equilibrium
Sign in / Sign up

Export Citation Format

Share Document