Electron Vortex Dynamics and Two-Dimensional Field Analysis

摘要

In recent paper [K. Ito, el al., Jpn. J. Appl. Phys. 40, 2558 (2001)], we present a fast and sufficiently accurate procedure to construct the potential and the electric field distribution from the observed electron density distribution in two-dimensional plane. Using this procedure, we obtain quantitative agreement between the observed velocity of the clump motion and the calculated velocity of that determined by the field analysis. In addition, the strong deformation of the clump is observed when that moves in the shear of the background vortex.