Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 6692-6695 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 61 |
| Issue number | 10 |
| DOIs | |
| State | Published - 2000 |