• First, you have to register at this site:
  Register
  Then you obtain the login and the password.
  
  
• Then you can download the software at this site:
  Download
  (password protected)
  
  
• At present, the Windows executable and the Fortran 90 source code of the nextnano³ software of the version of 2004-Aug-24 is available free of charge.
  Updates of the code are only available to those who either pay for support or purchase tutorial input files.
  Access to the source code (Fortran 2003) is available on request.
  Please contact support [at] nextnano.de for details.

next generation 3D nano device simulator







nextnano³ is a simulator 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)
  => Device Editor for 1D and 2D
• fully quantum mechanically, based on the 8-band k.p model within a high precision finite differences grid
• includes strain, piezo and pyroelectric charges
• growth directions along [001], [011], [111], [211], ... in short along any crystallographic direction
• equilibrium and non-equilibrium, calculation of current close to equilibrium (semi-classical), ballistic transport
• magnetic field
• optical absorption
• NEW: BIO-nextnano³
  Semiconductors connected to an electrolyte solution (Poisson-Boltzmann equation)
• nextnano³ is available at ICODE with a 1D Java Device Editor (ICODE's nextnano³ documentation)