Research Article

Effect of Viscosity on Stopping Power for a Charged Particle Moving above Two-Dimensional Electron Gas

Figure 5

The spatial distribution of the velocity vector field of perturbed electron gas (normalized by ) in the case of viscosity for different relaxation times (i.e., different viscosity coefficients and the dimensionless variables //): (a) , (b) , and (c) , with .
(a)
(b)
(c)