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1997

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/18875

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

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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.

Related resource

http://dx.doi.org/10.1103/PhysRevE.56.1490

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Física estadística, Termodinàmica, Sistemes dinàmics diferenciables, Matèria condensada

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Statistical physics, Thermodynamics, Differentiable dynamical systems, Condensed matter

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Articles publicats en revistes (Física de la Matèria Condensada)
Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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GOMILA LLUCH, Gabriel, et al. Stationary states and phase diagram for a model of the Gunn effect under realistic boundary conditions. Physical Review e. 1997. Vol. 56, num. 2, pags. 1490-1499. ISSN 1063-651X. [consulted: 17 of October of 2026]. Available at: https://hdl.handle.net/2445/18875

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