Hot Brownian carriers in the Langevin picture: Application to a simple model for the Gunn effect in GaAs

F.C. Bauke and R.E. Lagos

Physica A: Statistical Mechanics and its Applications, 2014, vol. 393, issue C, 235-243

Abstract: We consider a charged Brownian gas under the influence of external, static and uniform electric and magnetic fields, immersed in a uniform bath temperature. We obtain the solution for the associated Langevin equation, and thereafter the evolution of the nonequilibrium temperature towards a nonequilibrium (hot) steady state. We apply our results to a simple yet relevant Brownian model for carrier transport in GaAs. We obtain a negative differential conductivity regime (Gunn effect) and discuss and compare our results with the experimental results.

Keywords: Brownian motion; Langevin equation; Dissipative dynamics; Evolution of nonequilibrium systems; Carrier transport (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:393:y:2014:i:c:p:235-243

DOI: 10.1016/j.physa.2013.08.081

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