Abstract
A novel generalized Landauer formula is derived and used to study the voltage-dependent resistance in a one-dimensional (1D) disordered system. A finite voltage difference introduces energy integration and gives the system self-averaging behavior to a certain extent. The quantum resistance of a 1D system generally shows a rich structure in its dependence on applied voltage and length. Resistance fluctuations are shown to decrease with increasing voltage. In spite of the self-averaging, the mean resistance at large voltage turns out to scale superlinearly with length.
Original language | English |
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Pages (from-to) | 6452-6460 |
Number of pages | 9 |
Journal | Physical Review B |
Volume | 38 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Jan 1988 |