Otro
Hot Brownian carriers in the Langevin picture: Application to a simple model for the Gunn effect in GaAs
Registro en:
Physica A: Statistical Mechanics and its Applications.
0378-4371
10.1016/j.physa.2013.08.081
WOS:000328179200018
2-s2.0-84884254211
Autor
Bauke, F. C.
Lagos, R. E.
Resumen
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. © 2013.