TY - JOUR
A1 - Pérez Garrido, Antonio
AU - Ortuño Ortín, Miguel
AU - Díaz Sánchez, Anastasio
T1 - Configuration space in electron glasses
Y1 - 2001
SN - 1478-6443
UR - http://hdl.handle.net/10317/630
AB - We study numerically the configuration space at low energy of electron glasses. We consider systems with Coulomb interactions, short–range interactions and no interactions. First, we calculate the integrated density of configurations as a function of energy. At a given energy, this density is smaller for Coulomb glasses than for short-range systems, which in turn is smaller than for non–
interacting systems. We analyze how the site occupancy varies with the number of configurations.
Through this study we estimate the number of particles involved in a typical low–energy transition between configurations. This number increases with system size for long range interactions, while it is basically constant for a short-range interaction. Finally we calculate the density of metastable configurations, i.e. valleys, classified according to their degree of stability.
KW - Cristales de electrónes
KW - Cristales Coulomb
KW - Configuración de espacios
KW - Temperatura
KW - Interacciones Coulomb
KW - Energía
KW - Crystals of electrons
KW - Coulomb Crystals
KW - Configuration space
KW - Temperature
KW - Coulomb interactions
KW - Energy
KW - Física Aplicada
LA - eng
PB - Taylor & Francis
ER -