Year: 2018
Type: preprint
Abstract: An expression for the transmission matrix based conductance is provided for the propagation of scalar waves in certain bifurcated discrete waveguides using the paradigm of a three-terminal Landauer-Buttiker junction. It is found that the conductance across the terminals of bifurcated branches forming a sharp corner, interpreted as a controller of `leakage' flux, can be tuned by manipulating the number of channels and the type of lateral confinement. Natural applications in engineering and science arise in the context of nanoscale transport involving elastic, phononic, or electronic waves. In particular, the paper includes a discussion of temperature dependent thermal conductance, assuming only the contribution of out-of-plane phonons, along with some graphical illustrations.
Source: arXiv (Cornell University)
Author: Sharma, Basant Lal
Institution: Indian Institute of Technology Kanpur
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Awards: G2859337757, G517455557, G981771181
OpenAlex ID: W2886770706