Abstract
AbstractWe study, via an exact self‐consistent recursion method, the effect of random interchain hoppings on the electronic transmission through two chains with common collecting electrodes at their ends. Each of the chains may be pure or doped with random impurity dimers. The interchain couplings are random in both strength and position. The results show that although the increase of the strength of the random interchain couplings causes the decrease of the transmission, the increase of the coupling density of the system may first decrease and then increase the transmission. A new type of coherent disorder in interchain couplings is proposed which can enhance thetransmission coefficient remarkably. Our results may shed light on the understanding of the transport properties in the fibril‐form polymers.
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