Electronic transmission in bent quantum wires
arXiv:0909.3692 · doi:10.1016/j.physe.2010.02.021
Abstract
Electronic transmission in bent quantum wires modeled by the tight binding Hamiltonian, and clamped between ideal, semi-infinite leads is studied. The effect of `bending' the chain is simulated by introducing a non-zero hopping between the extremities of the wire. It is seen that the proximity of the two ends gives rise to Falo line shapes in the transmission spectrum. Transmission properties for both an ordered lattice and a Fibonacci quantum wire are discussed. In the quasi-periodic Fibonacci chain, the proximity of the two ends of the chain closes all the gaps in the spectrum and the spectrum loses it's Cantor set character.
6 pages, 6 figures, Fig.2 replaced by the correct version
References in corpus (6)
- Transport through a quantum wire with a side quantum-dot array
- Control of electron transport through Fano resonances in molecular wires
- Engineering Fano resonances in discrete networks
- Fano resonance in discrete lattice models: controlling lineshapes with impurities
- Electronic transmission in a model quantum wire with side coupled quasiperiodic chains: Fano resonance and related issues
- Electron in a tangled chain: multifractality at the small-world critical point