Figure 4
From: Magnetic field amplification driven by the gyro motion of charged particles
(a) Time evolution of the average (black) and maximum (blue) of \(B_z\) in the core region (\(\sqrt{x^2+y^2}<\lambda _L\)). Red profile indicates the total number of anti-clockwise rotating electrons in the core with an arbitrary unit. (b,c) are the distributions of linear electron density and \(B_z\) at \(\mathrm {t=300~fs}\). Black arrows in (b) are the corresponding current vectors.
