1. G

    The tight-binding hamiltonian for a two-dimensional vanadium dioxide

    In his book, Quantum Field Theory for the Gifted Amateur, author Stephen Blundell explains that in the tight-binding model, one considers a lattice of fixed atoms with electrons moving between them (as shown in Fig. 4.6 above). These electrons can lower their kinetic energies by hopping from...
  2. G

    Stoichiometry Ratio and Tight-binding Model

    Is Stoichiometry ratio important in tight-binding approximation ? i am going to calculate energy band structure of Vanadium dioxide using this approximation, so i have to determine its unit cell first (the unit cell of VO2 is shown at Fig 1). (Figure 1. tetragonal unit cell of the high...