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NEMO5 and 2D Materials: Tuning Bandstructures, Wave Functions and Electrostatic Screening
19 Oct 2016 | Online Presentations | Contributor(s): Tillmann Christoph Kubis
In this talk, I will briefly discuss the MLWF approach and compare it to DFT and atomistic tight binding. Initial results using the MLWF approach for 2D material based devices will be discussed and compared to experiments. These results unveil systematic band structure changes as functions of the layer thickness and the applied gate potential. The electrostatic response depends on the location of the band edges in the Brillouin zone, their degeneracy and associated wavefunctions. All these properties turn out to be tunable. ...
Self-energies: Opening Doors for Nanotechnology
07 Apr 2016 | Online Presentations | Contributor(s): Tillmann Christoph Kubis
In this talk, it will be shown how the concept of self-energies can be used to interface all these fields into the same nanotechnology modeling framework. Self-energies are most commonly used in the quantum transport method of nonequilibrium Green’s functions (NEGF). The NEGF method is widely accepted as the most consistent method for modeling coherent and incoherent effects....
Mode Space Tight Binding Model for Ultra-Fast Simulations of III-V Nanowire MOSFETs and Heterojunction TFETs
13 Nov 2015 | Online Presentations | Contributor(s): Aryan Afzalian, Jun Huang, Hesameddin Ilatikhameneh, Santiago Alonso Perez Rubiano, Tillmann Christoph Kubis, Michael Povolotskyi, Gerhard Klimeck
NEMO5: Why must we treat topological insulator nanowires atomically?
15 Oct 2015 | Online Presentations | Contributor(s): Fan Chen, Michael J. Manfra, Gerhard Klimeck, Tillmann Christoph Kubis
IWCE 2015 presentation. Abstract and more information to be added at a later date.
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
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