The nextnano++ and nextnano³ software are simulators for calculating, in a consistent manner, the realistic electronic structure of three-dimensional heterostructure quantum devices under bias and its current density close to equilibrium.
The electronic structure is calculated fully quantum mechanically, whereas the current is determined by employing a semiclassical concept of local Fermi levels that are calculated self-consistently.
Simulating quantum dots, quantum wires, RTDs, MOSFETs, HEMTs, etc.
includes group IV materials (Si, Ge, SiGe), all III-V and II-VI materials and its ternaries as well as lattice-matched quaternaries; the nitrides and the II-VI materials are available in the zincblende and wurtzite crystal structure
flexible structures and geometries (1D, 2D and 3D)
fully quantum mechanically, based on the 8-band k.p model within a finite differences grid
includes strain, piezo and pyroelectric charges
growth directions along , , , , ... in short along any crystallographic direction
equilibrium and nonequilibrium, calculation of current close to equilibrium (semi-classical), ballistic transport