TY - JOUR 
A1 - Pérez Garrido, Antonio
AU - Ortuño Ortín, Miguel
AU - Díaz Sánchez, Anastasio
AU - Cuevas Rodríguez, Emilio
T1 - Numerical study of relaxation in electron glasses
Y1 - 1999
SN - 1079-7114
UR - http://arxiv.org/abs/cond-mat/9901311
UR - http://hdl.handle.net/10317/577
AB - We perform a numerical simulation of energy relaxation in three–dimensional electron glasses in the strongly localized regime at finite temperatures. We consider systems with no interactions, with long-range Coulomb interactions and with short-range interactions, obtaining a power law
relaxation with an exponent of 0.15, which is independent of the parameters of the problem and of the type of interaction. At very long times, we always find an exponential regime whose characteristic time strongly depends on temperature, system size, interaction type and localization radius. We extrapolate the longest relaxation time to macroscopic sizes and, for interacting samples, obtain
values much larger than the measuring time. We finally study the number of electrons participating in the relaxation processes of very low energy configurations.
KW - Física Aplicada
KW - Cristales
KW - Temperatura
KW - Proceso de relajación
KW - Baja enegía
KW - Crystals
KW - Temperature
KW - Relaxation process
KW - Low energy
LA - eng
PB - American Physical Society
ER -