TY - JOUR
T1 - Heuristic model for slow relaxation of excess conductance in electron glasses
AU - Vaknin, A.
AU - Ovadyahu, Z.
AU - Pollak, M.
PY - 2000
Y1 - 2000
N2 - We discuss relaxation of excess conductance (Formula presented) observed in recent experiments on electron glasses. Using a simple model based on some salient features of a hopping system with interactions, we show that for relatively short times (Formula presented) scales like (Formula presented) and it becomes faster than that as time evolves. The crossover to a faster than (Formula presented) dependence occurs when (Formula presented) where (Formula presented) is the smallest relaxation rate in the system, and t is the observation time.
AB - We discuss relaxation of excess conductance (Formula presented) observed in recent experiments on electron glasses. Using a simple model based on some salient features of a hopping system with interactions, we show that for relatively short times (Formula presented) scales like (Formula presented) and it becomes faster than that as time evolves. The crossover to a faster than (Formula presented) dependence occurs when (Formula presented) where (Formula presented) is the smallest relaxation rate in the system, and t is the observation time.
UR - http://www.scopus.com/inward/record.url?scp=0001570390&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.61.6692
DO - 10.1103/PhysRevB.61.6692
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0001570390
SN - 1098-0121
VL - 61
SP - 6692
EP - 6695
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 10
ER -