New tool for the simulation of heterostructures at the atomic scale
(Nanowerk News) Quantum mechanical effects are becoming increasingly important in realistic devices as their critical sizes reduce to a few nanometers. It has been recognized for several years now that the actually implemented (in commercial simulators) effective mass models are inadequate to capture crucial details in devices with material variations at atomic dimensions. That is why 1dhetero is definitely a valid alternative to those inadequate simulators.
Nanowerk News
May 10, 2009
http://www.nanowerk.com/news/newsid=10715.php
Quantum mechanical effects are becoming increasingly important in realistic devices as their critical sizes reduce to a few nanometers. Equally important is the ability to capture the details at the atomic level to capture effects of band-to-band mixing, band-non-parabolicities, and crystal orientations. The 1D heterostructure tool presented here is based on the nearest neighbor tight-binding model that naturally captures these effects.
It has been recognized for several years now that the actually implemented (in commercial simulators) effective mass models are inadequate to capture crucial details in devices with material variations at atomic dimensions. In addition to that, a quantum-mechanical approach is necessary to explain the effects of geometry and band structure. Furthermore, today nano-devices are built at the atomic scale by experimentalists. That is why 1dhetero is definitely a valid alternative to those inadequate simulators.
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