Abstract
Collective charge transport is studied in one- and two-dimensional arrays of small normal-metal dots separated by tunneling barriers. At temperatures well below the charging energy of a dot, disorder leads to a threshold for conduction which grows linearly with the size of the array. For short-ranged interactions, one of the correlation length exponents near threshold is found from a novel argument based on interface growth. The dynamical exponent for the current above threshold is also predicted analytically, and the requirements for its experimental observation are described.
Original language | English (US) |
---|---|
Pages (from-to) | 3198-3201 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 71 |
Issue number | 19 |
DOIs | |
State | Published - 1993 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy