Self-sustained time-dependent current oscillations under dc voltage bias have been observed in recent experiments on n-doped semiconductor superlattices with sequential …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …