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Title: Stationary states and phase diagram for a model of the Gunn effect under realistic boundary conditions
Author: Gomila Lluch, Gabriel
Rubí Capaceti, José Miguel
Rodríguez Cantalapiedra, Inma
Bonilla, L. L. (Luis López), 1956-
Keywords: Física estadística
Sistemes dinàmics diferenciables
Matèria condensada
Statistical physics
Differentiable dynamical systems
Condensed matter
Issue Date: 1997
Publisher: The American Physical Society
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 established.
Note: Reproducció del document publicat a:
It is part of: Physical Review e, 1997, vol. 56, núm. 2, p. 1490-1499
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ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)
Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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