ISSN:
1434-6036
Keywords:
PACS. 05.70.Ln Nonequilibrium and irreversible thermodynamics - 72.20.Ht High-field and nonlinear effects - 85.30.-z Semiconductor devices
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We study the propagation of a lateral current density front in a bistable semiconductor system with S- or Z-shaped current-voltage characteristics. It is demonstrated that an external load circuit introduces a global coupling which leads to positive or negative feedback upon the front dynamics in S- or Z-type systems, respectively. This results in accelerated or decelerated front motion. The type of feedback can be reversed if the system is operated in an active external circuit with negative load resistance. Double barrier resonant tunneling diodes (DBRT) and heterostructure hot electron diodes (HHED) are used as examples of Z- and S-type systems, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510050019
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