Dynamic instability in resonant tunneling

Inkoferer, J. and Obermair, Gustav M. and Claro, F. (2001) Dynamic instability in resonant tunneling. PHYSICAL REVIEW B, 64 (20): 201405. ISSN 2469-9950, 2469-9969

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Abstract

We show that a novel 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.

Item Type: Article
Uncontrolled Keywords: INTRINSIC BISTABILITY; MAGNETIC-FIELD; DOUBLE BARRIERS;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 24 Nov 2021 09:50
Last Modified: 24 Nov 2021 09:50
URI: https://pred.uni-regensburg.de/id/eprint/40937

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