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5 papers · 2 filters
Generating particle-like scattering states in wave transport
Stefan Rotter, Philipp Ambichl, Florian Libisch
We introduce a procedure to generate scattering states which display trajectory-like wave function patterns in wave transport through complex scatterers. These deterministic scatte…
Analysis of Thermoelectric Properties of Scaled Silicon Nanowires Using an Atomistic Tight-Binding Model
Neophytos Neophytou, Martin Wagner, Hans Kosina +1
Low dimensional materials provide the possibility of improved thermoelectric performance due to the additional length scale degree of freedom for engineering their electronic and t…
On the Bandstructure Velocity and Ballistic Current of Ultra Narrow Silicon Nanowire Transistors as a Function of Cross Section Size, Orientation and Bias
Neophytos Neophytou, Sung Geun Kim, Gerhard Klimeck +1
A 20 band sp3d5s* spin-orbit-coupled, semi-empirical, atomistic tight-binding (TB) model is used with a semi-classical, ballistic, field-effect-transistor (FET) model, to theoretic…
Probing decoherence through Fano resonances
Andreas Bärnthaler, Stefan Rotter, Florian Libisch +4
We investigate the effect of decoherence on Fano resonances in wave transmission through resonant scattering structures. We show that the Fano asymmetry parameter q follows, as a f…
Transition to Landau Levels in Graphene Quantum Dots
F. Libisch, S. Rotter, J. Güttinger +2
We investigate the electronic eigenstates of graphene quantum dots of realistic size (i.e., up to 80 nm diameter) in the presence of a perpendicular magnetic field B. Numerical tig…