Dynamic instability in resonant tunneling
介观与纳米尺度物理
2013-05-29 v1 材料科学
摘要
We show that an instability may be present in resonant tunneling through a quantum well in one, two and three dimensions, when the resonance lies near the emitter Fermi level. A simple semiclassical model which simulates the resonance and the projected density of states by a nonlinear conductor, the Coulomb barrier by a capacitance, and the time evolution by an iterated map, is used. The model reproduces the observed hysteresis in such devices, and exhibits a series of bifurcations leading to fast chaotic current fluctuations.
引用
@article{arxiv.cond-mat/0106358,
title = {Dynamic instability in resonant tunneling},
author = {G. Obermair and J. Inkoferer and F. Claro},
journal= {arXiv preprint arXiv:cond-mat/0106358},
year = {2013}
}
备注
7 pages, 2 figures