Subnanometer-resolved measurement of the tunneling effective mass using bulk plasmons
Stolojan, V, Moreau, P, Goringe, MJ and Silva, SRP (2006) Subnanometer-resolved measurement of the tunneling effective mass using bulk plasmons APPLIED PHYSICS LETTERS, 88 (12), ARTN 1.
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.
|Divisions :||Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre|
|Date :||20 March 2006|
|Identification Number :||10.1063/1.2188593|
|Uncontrolled Keywords :||Science & Technology, Physical Sciences, Physics, Applied, Physics, ENERGY-LOSS-SPECTROSCOPY, SUPERLATTICES, FILMS|
|Related URLs :|
|Depositing User :||Mr Adam Field|
|Date Deposited :||27 May 2010 14:05|
|Last Modified :||23 Sep 2013 18:25|
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