Current-voltage characteristic and stability in resonant-tunneling n-dopedsemiconductor superlattices
نویسندگان
چکیده
منابع مشابه
Current-Voltage Characteristic of Schottky- Barrier CNTFET Considering Resonant Transmission
In this paper previous works on calculating the output current of SBCNFET are reviewed and a new three capacitance model for estimating potential profile along the channel is proposed. Furthermore the transmission coefficient through the channel has studied and some new formulas considering the electron coherency in the channel are suggested. Electron coherency will results in resonant transmis...
متن کاملPhotoinduced Multistable Phenomena in the Tunneling Current through Doped Superlattices
We investigate theoretically the effect of intense THz radiation on the nonlinear properties of doped semiconductor superlattices (SL’s). For the first time, the fully nonlinear current through the SL with an arbitrary combination of ac and dc voltages is calculated from a microscopic self-consistent model. We focus on the formation of electric field domains and the appearance of new multistabi...
متن کاملSequential tunneling current through semiconductor superlattices under intense THz radiation
Recent transport measurements in GaAs–GaAlAs superlattices under THz radiation show evidence of dynamical localization and electron pumping in the opposite direction to the dc bias in the linear response regime. The ac field induces absorption and emission processes in the multiwell structure which assist the tunnel and which are reflected as new features in the current density. A calculation w...
متن کاملA Novel Index for Online Voltage Stability Assessment Based on Correlation Characteristic of Voltage Profiles
Abstract: Voltage instability is a major threat for security of power systems. Preserving voltage security margin at a certain limit is a vital requirement for today’s power systems. Assessment of voltage security margin is a challenging task demanding sophisticated indices. In this paper, for the purpose of on line voltage security assessment a new index based on the correlation characteristic...
متن کاملResistance bi-stability in resonant tunneling diode pillar arrays
Resonant tunneling diodes ~RTDs! are one of the most promising quantum effect devices for practical applications. The presence of negative differential resistance at room temperature allows RTDs to be used as memory storage devices. Recent work has demonstrated that the buildup of electron charge in the well can have a strong influence on the bias required to switch between stable states. In ad...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 1997
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.55.2466