Skip to content.

TUD

search  |  internal  |  deutsch
Personal tools
TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2014.04.02




A Simple Graphical Model to Predict and to Control of Quantum Interference in T-shaped Molecular Junctions

Daijiro Nozaki, Haldun Sevincli, Stanislav M. Avdoshenko, Rafael Gutierrez, Gianaurelio Cuniberti

DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM)

2014.04.02; Dresden, Germany

Quantum interference (QI) effect in molecular devices introduces an abrupt dip in the transmission spectra, thus it can be used to a series of applications such as molecular switches and molecular thermoelectric devices. For the development of the QI-based molecular devices, it is important to give the guideline to predict and to control the shape and positions of QI in transmission spectra. For this purpose, we present a simple graphical approach (called as "parabolic model") to predict the appearance, shape, and energy position of the QI in transmission spectra for T-shaped molecular devices. We show that this "parabolic model" enables one to visualize the relationship between key electronic parameters and the shape of transmission functions without calculating transmission functions.



conference announcement (html)



people| research | teaching | links | internal | home

last modified: 2018.10.17 Mi
author: webadmin