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3 papers
Mode-space-compatible inelastic scattering in atomistic nonequilibrium Green's function implementations
Daniel A. Lemus, James Charles, Tillmann Kubis
The nonequilibrium Green's function (NEGF) method is often used to predict transport in atomistically resolved nanodevices and yields an immense numerical load when inelastic scatt…
Introducing Open boundary conditions in modeling nonperiodic materials and interfaces: the impact of the periodic assumption
James Charles, Sabre Kais, Tillmann Kubis
Simulations are essential to accelerate the discovery of new materials and to gain full understanding of known ones. Although hard to realize experimentally, periodic boundary cond…
Theoretical study of strain-dependent optical absorption in Stranski-Krastanov grown InAs/InGaAs/GaAs/AlGaAs quantum dots
Tarek Ameen, Hesameddin Ilatikhameneh, Yuling Hsueh +10
A detailed theoretical study of the optical absorption in self-assembled quantum dots is presented in this paper. A rigorous atomistic strain model as well as a sophisticated elect…