1203.1249 (Santanu K. Maiti)

Metal-Insulator Transition in a Hubbard Chain: A Mean Field Study    [PDF]

Santanu K. Maiti

We show that a tight-binding one-dimensional chain composed of interacting and non-interacting atomic sites can exhibit a metal-insulator transition at multiple values of Fermi energy in presence of external electric field. Within a mean field Hartree-Fock approximation we numerically calculate two-terminal transport by using Green's function formalism. Several cases are analyzed depending on the arrangements of interacting and non-interacting atoms in the chain. The analysis may be helpful in designing mesoscale switching devices.

View original: http://arxiv.org/abs/1203.1249