Skip to main content
Article thumbnail
Location of Repository

Subnanometer-resolved measurement of the tunneling effective mass using bulk plasmons

By V Stolojan, P Moreau, MJ Goringe and SRP Silva

Abstract

<p>Superlattices are periodic structures where the constituents alternate between low- and high-bandgap materials; the resulting quantum confinement tailors the resulting device properties and increases their operating speed. Amorphous carbon is an excellent candidate for both the well and barrier layers of the superlattices, leading to a fast and reliable device manufacturing process. We show theoretically and experimentally that, using low energy-loss spatially resolved spectroscopy, we can characterize the component layers of a superlattice. We measure quantum confinement of the electron wave function in the superlattice's wells and calculate the effective tunneling mass for amorphous carbon superlattices as m(*)=0.067m(e). This effective mass makes diamondlike carbon films as feasible candidate for electronic devices.</p

Publisher: AMER INST PHYSICS
Year: 2006
DOI identifier: 10.1063/1.2188593
OAI identifier: oai:epubs.surrey.ac.uk:61

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.