TBStudio is a powerful quantum technical software package to construct Tight-Binding (TB) model for nano-scale materials. Starting from the simplified linear combination of atomic orbitals method in combination with first-principles calculations (such as OpenMX or Vasp packages), one can construct a TB model in the two-centre approximation. Using Slater and Koster approach we calculate the TB Hamiltonian of the system and use a nonlinear fitting algorithm to find the best entries for both Hamiltonian and overlap matrices. One can obtain expressions for the Hamiltonian and overlap matrix elements between different orbitals for the different atoms and present the SK coefficients in an orthogonal or nonorthogonal basis set. Furthermore, by using TBStudio you can generate your own code in your preferred programming language ie. C++, C, Fortran, Mathematica, Matlab, and Python. TBStudio and its examples together with the tutorials are available for download from tight-binding.com.

Features

  • Opengl viewer
  • TB Hamiltonian
  • SK parameters
  • Orthogonal
  • Nonorthogonal
  • spin-orbit coupling
  • non linear fitting
  • Lapack library
  • TB Code Generator

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Registered

2019-06-23