Abstract
Under low constant-voltage conditions, individual tunneling barriers are shown to be completely switched off for tunneling conduction. These barriers appear to be in the current-leading dead ends or in the "singly connectedlike" junctions of the percolation backbone. The observed global effect under these conditions is a result of uncorrelated opening and closing of these barriers.
Original language | English |
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Pages (from-to) | 236601/1-236601/4 |
Journal | Physical Review Letters |
Volume | 90 |
Issue number | 23 |
State | Published - 13 Jun 2003 |