Fano resonance in discrete lattice models: controlling lineshapes with impurities

Details Fano resonance in discrete lattice models: controlling lineshapes with impurities Fano resonance in discrete lattice models: controlling lineshapes with impurities

2006-11-08

arxiv.org/abs/cond-mat/0611211v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 5 eps figures

Scientific paper

10.1016/j.physleta.2007.02.044

The possibility of controlling Fano lineshapes in the electronic transmission is addressed in terms of a simple discrete model within a tight binding framework, in which a finite sized ordered chain is coupled from one side to an infinite linear chain (the `backbone') at one lattice point. It is found that, the profile of Fano resonance is strongly influenced by the presence of impurity atoms in the backbone. We specifically discuss the case with just two substitutional impurities sitting in the otherwise ordered backbone. Precise analytical formulae relating the locations of these impurities to the size of the side coupled chain have been presented. The nature of the transmission spectrum and the reversal of the pole-zero structures in the Fano resonance are discussed with the help of these formulae.

Affiliated with

Also associated with

No associations

Rating

Fano resonance in discrete lattice models: controlling lineshapes with impurities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fano resonance in discrete lattice models: controlling lineshapes with impurities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fano resonance in discrete lattice models: controlling lineshapes with impurities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-625296