Programme

P.79 -- Poster, VCTP-46

Date: Wednesday, 6 October 2021

Time: 08:30 - 10:00

Anderson localization on the Anderson – Hubbard model with spatially alternating interactions

Hoang Anh Tuan (1), Nguyen Thi Hai Yen (1) and Le Duc Anh (2)

(1) Institute of Physics, Vietnam Academy of Science and Technology (2) Hanoi National University of Education

We investigate the metal – insulator transitions in the half-filled Anderson – Hubbard model with spatially alternating interactions within the framework of the typical medium theory.The equations determining the boundary between the correlated metal, Mott and Anderson insulators are derived and the ground state phase diagrams of the system are obtained. We find that with increasing the interaction asymmetry the metal region in the phase diagram is reduced, while both Mott and Anderson insulator regions are enlarged.

Presenter: Hoang Anh Tuan