Non-Linear Effects in Resonant Tunneling; Bistabilities and Self-Sustained Oscillating Currents

TL;DR

This paper investigates non-linear effects such as bistabilities and oscillations in resonant tunneling systems under magnetic fields, revealing how system parameters influence these behaviors.

Contribution

It provides a detailed analysis of non-linear phenomena in double barrier heterostructures, including the effects of magnetic fields on 3D and 1D systems.

Findings

Identification of bistabilities in I-V characteristics

Observation of instabilities and oscillations in current

Dependence of non-linear effects on system parameters

Abstract

We study non-linear phenomena in double barrier heterostructures. Systems in 3D under the effect of an external magnetic field along the current and 1D systems are analyzed. Non-linearities are reflected in the I-V characteristic curve as bistabilities, instabilities and time dependent oscillations of the currents. The nature of the non-linear behavior depends upon the parameters that define the system.