Two Dimensional Inhomogeneous Magnetic Electron Drift Modes

2009 ◽  
Author(s):  
Dastgeer Shaikh ◽  
Bengt Eliasson ◽  
P. K. Shukla ◽  
Bengt Eliasson ◽  
Padma K. Shukla
Keyword(s):  
Electron Drift ◽  
Two Dimensional ◽  
Magnetic Electron

scholarly journals Simulations of two-dimensional magnetic electron drift vortex mode turbulence in plasmas

2009 ◽  
Vol 75 (1) ◽  
pp. 133-144 ◽  
Author(s):  
DASTGEER SHAIKH ◽  
P. K. SHUKLA
Keyword(s):  
Electron Temperature ◽  
Fluid Velocity ◽  
Equilibrium Density ◽  
Electron Drift ◽  
Two Dimensional ◽  
Orthogonal Direction ◽  
Thermal Electron ◽  
Magnetic Structures ◽  
Unmagnetized Plasma ◽  
Magnetic Electron

AbstractSimulations are performed to investigate the turbulent properties of nonlinearly interacting two-dimensional magnetic electron drift vortex (MEDV) modes in a non-uniform unmagnetized plasma. The relevant nonlinear equations governing the dynamics of the MEDV modes are the wave magnetic field and electron temperature perturbations in the presence of the equilibrium density and temperature gradients. The important nonlinearities come from the advection of the electron fluid velocity perturbation and the electron temperature, as well as from the nonlinear electron Lorentz force. Computer simulations of the governing equations for the nonlinear MEDV modes reveal the generation of streamer-like electron flows, such that the corresponding gradients in the direction of the inhomogeneities tend to flatten out. In contrast, the gradients in an orthogonal direction vary rapidly. Consequently, the inertial range energy spectrum in decaying MEDV mode turbulence exhibits a much steeper anisotropic spectral index. The magnetic structures in the MEDV mode turbulence produce non-thermal electron transport in our non-uniform plasma.

Theory of magnetic electron drift modes

1996 ◽  
Vol T63 ◽  
pp. 224-233
Author(s):  
Vladimir P Pavlenko
Keyword(s):  
Electron Drift ◽  
Magnetic Electron

Magnetic electron drift vortex in magnetized plasma

1997 ◽  
Vol 55 (5) ◽  
pp. 599-603 ◽  
Author(s):  
M Khizar ◽  
Arshad M Mirza ◽  
M Salahuddin ◽  
M S Qaisar
Keyword(s):  
Magnetized Plasma ◽  
Electron Drift ◽  
Magnetic Electron

Magnetic electron drift vortex mode instability in a cylindrical plasma

1990 ◽  
Vol 2 (5) ◽  
pp. 1083-1084 ◽  
Author(s):  
L. Stenflo ◽  
M. Y. Yu ◽  
P. K. Shukla
Keyword(s):  
Electron Drift ◽  
Mode Instability ◽  
Cylindrical Plasma ◽  
Magnetic Electron

scholarly journals Self-consistent model of electron drift mode turbulence

2008 ◽  
Vol 74 (1) ◽  
pp. 21-33 ◽  
Author(s):  
ZHANNA N. ANDRUSHCHENKO ◽  
MARTIN JUCKER ◽  
VLADIMIR P. PAVLENKO
Keyword(s):  
Large Scale ◽  
Magnetized Plasma ◽  
Small Scale ◽  
Electron Drift ◽  
Quasilinear Theory ◽  
Magnetic Structures ◽  
Large Scale Structures ◽  
Consistent Model ◽  
Scale Turbulence ◽  
Magnetic Electron

AbstractThe nonlinear dynamics of magnetic electron drift mode turbulence are outlined and the generation of large-scale magnetic structures in a non-uniform magnetized plasma by turbulent Reynolds stress is demonstrated. The loop-back of large-scale flows on the microturbulence is elucidated and the modulation of the electron drift mode turbulence spectrum in a medium with slowly varying parameters is presented. The wave kinetic equation in the presence of large-scale flows is derived and it can be seen that the small-scale turbulence and the large-scale structures form a self-regulating system. Finally, it is shown by the use of quasilinear theory that the shearing of microturbulence by the flows can be described by a diffusion equation in k-space and the corresponding diffusion coefficients are calculated.

Threshold field for soft damage and electron drift velocity in InGaN two-dimensional channels

2015 ◽  
Vol 30 (10) ◽  
pp. 105016 ◽  
Author(s):  
L Ardaravičius ◽  
O Kiprijanovič ◽  
J Liberis ◽  
E Šermukšnis ◽  
A Matulionis ◽  
...  
Keyword(s):  
Drift Velocity ◽  
Electron Drift Velocity ◽  
Threshold Field ◽  
Electron Drift ◽  
Two Dimensional

Stimulated Compton scattering of magnetic-electron-drift vortex waves off plasma ions

1988 ◽  
Vol 37 (7) ◽  
pp. 2701-2702 ◽  
Author(s):  
P. K. Shukla ◽  
M. Y. Yu ◽  
L. Stenflo
Keyword(s):  
Compton Scattering ◽  
Electron Drift ◽  
Plasma Ions ◽  
Magnetic Electron

Electron energy transport by magnetic electron drift vortex waves

1989 ◽  
Vol 1 (6) ◽  
pp. 1333-1334 ◽  
Author(s):  
P. K. Shukla ◽  
M. Y. Yu ◽  
L. Stenflo
Keyword(s):  
Electron Energy ◽  
Energy Transport ◽  
Electron Drift ◽  
Magnetic Electron
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