Non-linear dynamics of semiconductor superlattices

LL Bonilla, HT Grahn - Reports on Progress in Physics, 2005 - iopscience.iop.org
In the last decade, non-linear dynamical transport in semiconductor superlattices (SLs) has
witnessed significant progress in theoretical descriptions as well as in experimentally …

Chaotic dynamics of electric-field domains in periodically driven superlattices

OM Bulashenko, MJ Garcia, LL Bonilla - Physical Review B, 1996 - APS
Self-sustained time-dependent current oscillations under dc voltage bias have been
observed in recent experiments on n-doped semiconductor superlattices with sequential …

General analysis of instabilities and oscillations of the sequential tunneling in superlattices

XR Wang, Q Niu - Physical Review B, 1999 - APS
We present a general analysis of instabilities and oscillations of the sequential tunneling
current in superlattices, based on the current-voltage characteristic of a single barrier. Our …

Anomaly of the current self-oscillation frequency in the sequential tunneling of a doped GaAs/AlAs superlattice

XR Wang, JN Wang, BQ Sun, DS Jiang - Physical Review B, 2000 - APS
An anomalous behavior of the current self-oscillation frequency is observed in the dynamic
dc voltage bands, emerging from each sawtoothlike branch of the current-voltage …

New formation mechanism of electric field domain due to Γ‐X sequential tunneling in GaAs/AlAs superlattices

Y Zhang, X Yang, W Liu, P Zhang, D Jiang - Applied physics letters, 1994 - pubs.aip.org
We have studied the sequential tunneling of doped weakly coupled GaAs/AlAs superlattices
(SLs), whose ground state of the X valley in AlAs layers is designed to be located between …

Thermally induced capacitance and electric field domains in GaAsAl0. 3Ga0. 7As quantum well infrared photodetector

XL Huang, YG Shin, KY Lim, EK Suh, HJ Lee… - Solid-State …, 1997 - Elsevier
The capacitance (C) of a GaAs Al 0.3 Ga 0.7 As quantum well infrared photodetector (QWIP)
was measured as a function of temperature and bias voltage. Thermally generated electrons …

Capacitance-voltage characteristics of multiple-quantum-well semiconductor heterostructures

M Ershov, V Ryzhii, K Saito - Journal of Physics D: Applied …, 1995 - iopscience.iop.org
The capacitance-voltage (CV) characteristics of multiple-quantum-well (MQW)
semiconductor heterostructures are studied using a proposed numerical model. The MQW …

Negative differential resistance and the transition to current self-oscillation in GaAs/AlAs superlattices

JN Wang, BQ Sun, XR Wang, HL Wang - Solid state communications, 1999 - Elsevier
We investigate the transition from static to dynamic electric field domains (EFDs) in a doped
GaAs/AlAs superlattice (SL). We show that a transverse magnetic field and/or the …

Integration of quantum transport models in classical device simulators

PN Racec, U Wulf, J Kučera - Solid-State Electronics, 2000 - Elsevier
We consider semiconductor devices that are composed of two parts: first, a small quantum
structure constituting the active region, and second, a classical environment with larger …

Space charge buildup in tight-binding superlattices induced by electron sequential tunneling

ZY Han, SF Yoon, K Radhakrishnan… - Superlattices and …, 1995 - Elsevier
High-field domain formation in semiconductor structures with tight-binding GaAs/AlGaAs
superlattices has been studied using capacitance-voltage (CV) measurements …