Consider a 1D tight-binding chain with nearest-neighbour hopping, where one of the atoms is replaced by an impurity. On-
Posted: Fri Apr 29, 2022 10:42 am
Consider a 1D tight-binding chain with nearest-neighbour hopping, where one of the atoms is replaced by an impurity. On-site energy for the regular atoms of the chain is e, while on-site energy of the impurity is so < c. Determine the energy and the shape of the bound state localized at impurity.