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Empirical Tight-binding Parameterization of SmSe in the sp3d5f7s* model
26 Mar 2013 | Downloads | Contributor(s): Zhengping Jiang, Marcelo Kuroda, Yaohua Tan, Dennis M. Newns, Michael Povolotskyi, Timothy Boykin, Tillmann Christoph Kubis, Gerhard Klimeck, Glenn J. Martyna
The Empirical Tight Binding(ETB) method is widely used in atomistic device simulations. The reliability of such simulations depends very strongly on the choice of basis sets and the ETB parameters.
The Piezoelectronic Transistor (PET) has been proposed as a post-CMOS device for fast, low-power …
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Tight Binding Parameters by DFT mapping
12 Sep 2012 | Notes | Contributor(s): Yaohua Tan, Michael Povolotskyi, Tillmann Christoph Kubis, Yu He, Zhengping Jiang, Gerhard Klimeck, Timothy Boykin
The Empirical Tight Binding(ETB) method is widely used in atomistic device simulations. The reliability of such simulations depends very strongly on the choice of basis sets and the ETB parameters. The traditional way of obtaining the ETB parameters is by fitting to experiment data,or critical …
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Nanoelectronic Modeling Lecture 35: Alloy Disorder in Nanowires
05 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Timothy Boykin, Neerav Kharche, Mathieu Luisier, Neophytos Neophytou
This presentation discusses the consequences of Alloy Disorder in unstrained strained AlGaAs nanowires
Relationship between dispersion relationship and transmission in perfectly ordered wires
Band folding in Si nanowires
Tranmisison in disordered wires – relationship to an approximate …
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Nanoelectronic Modeling Lecture 34: Alloy Disorder in Quantum Dots
05 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Timothy Boykin, Chris Bowen
This presentation discusses the consequences of Alloy Disorder in strained InGaAs Quantum Dots
Reminder of the origin of bandstructure and bandstructure engineering
What happens when there is disorder?
Concept of disorder in the local bandstructure
Configuration noise, concentration …
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Nanoelectronic Modeling Lecture 33: Alloy Disorder in Bulk
04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Timothy Boykin, Chris Bowen
This presentation discusses disorder in AlGaAs unstrained systems in bulk.
Bandstructure of an ideal simple unit cell
What happens when there is disorder?
Concept of a supercell
Band folding in a supercell
Band extraction from the concept of approximate …
