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Stationary states and phase diagram for a model of the Gunn effect under realistic boundary conditions

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Gomila Lluch, Gabriel
Rubí Capaceti, José Miguel
Rodríguez Cantalapiedra, InmaMés informacióMés informacióMés informació
Bonilla, L. L.
Document typeArticle
Defense date1997-08-01
PublisherThe American Physical Society
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
A general formulation of boundary conditions for semiconductor-metal contacts follows from a phenomenological procedure sketched here. The resulting boundary conditions, which incorporate only physically well-defined parameters, are used to study the classical unipolar drift-diffusion model for the Gunn effect. The analysis of its stationary solutions reveals the presence of bistability and hysteresis for a certain range of contact parameters. Several types of Gunn effect are predicted to occur in the model, when no stable stationary solution exists, depending on the value of the parameters of the injecting contact appearing in the boundary condition. In this way, the critical role played by contacts in the Gunn effect is clearly stablished
CitationGomila,J.; Rubi,J.M.; Cantalapiedra,I.R.; Bonilla,L.L. (1997). Stationary states and phase diagram for a model of the Gunn effect under realistic boundary conditions. Physical Review E, 56 (2): 1490-1499 
URIhttp://hdl.handle.net/2117/16910
ISSN1063-651X
Publisher versionhttp://link.aps.org/doi/10.1103/PhysRevE.56.1490
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  • NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri - Articles de revista [104]
  • Departament de Física Aplicada (fins octubre 2015) - Articles de revista [454]
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