Electron Structure Near Abrupt Edges in 2DEG under Strong Magnetic Field
Abstract
Energies and wave functions of edge states in twodimensional electron gas are evaluated for a finite step potential barrier model. The spectrum, instead of smooth bending of Landau branches in the vicinity of the barrier acquires a steplike form; unexpected edge plateaus and significant energy gap reduction take place between the neighbouring Landau branches above the barrier tops. The origin of these phenomena is traced. Stability with respect to modifications is established. Manifestation of the qualitatively new features of electron densities of states in abrupt confinements through magnetooptical and nuclear magnetic spin relaxation effects is proposed.
Keywords
Cite
@article{arxiv.cond-mat/9512093,
title = {Electron Structure Near Abrupt Edges in 2DEG under Strong Magnetic Field},
author = {I. Bartos and B. Rosenstein},
journal= {arXiv preprint arXiv:cond-mat/9512093},
year = {2015}
}
Comments
24 pages in LATEX, 7 figures available on request, to appear in physica status solidi(b)