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InAs: Evolution of iso-energy surfaces for heavy, light, and split-off holes due to uniaxial strain.
25 May 2010 | Animations | Contributor(s): Abhijeet Paul, Denis Areshkin, Gerhard Klimeck
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CNT Bands Learning Materials
By completing the CNTBands, users will be able to a) understand the relationship between system geometry (the roll vector of a nanotube or crystallographic direction of a nano-ribbon) and its band structure and b) the importance of employing screw symmetry in calculations of electronic...
CNT Bands Problems
4 low- to medium-difficulty problems with solutions: CNTBands_Problems__Solutions.pdf
CNT Bands Challenge Problem
It is important to have a quantitative model describing how the interaction of a CNT with its environment (e.g. supporting substrate, other nanotubes, polymer matrix, etc.) influences its ability to conduct current. One possible mathematical formulation of this physical problem can...
Inter-Valley vs. Intra-Valley Scattering in Zigzag-Edge Graphene Nano-Ribbons
Tight-binding modeling of the current in zigzag-edge graphene nano-ribbons indicates that 120-degrees turns of the ribbon have virtually no effect on the ballistic transmission within single-band conduction window. At the same time 60-degrees turns are highly reflective. Figures below...
GNR Challenge Problem
So far all experimentally observed graphene nano-ribbons (GNRs) exhibited semiconducting behavior. However, simple combination of nearest-neighbor pi-orbital tight-binding and Hubbard models suggests that the nature of the band gaps in GNRs is different. In particular zigzag-edge GNRs (Z-GNRs)...
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