Programme

P.22 -- Posters, VCTP-50

Date: Tuesday, 5 August 2025

Time: 08:30 - 10:00

Electronic phase diagram of the half-filled ionic Hubbard model on the honeycomb lattice

Nguyen Thi Huong^1, Hoang Anh Tuan^2

(1) Thuy Loi University, 175 Tay Son, Hanoi, Vietnam (2) Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Vietnam

The quantum phase transitions of the half-filled ionic Hubbard model on the honeycomb lattice are studied using the coherent potential approximation. The phase diagram of the honeycomb lattice is compared with those of the square lattice. Our results are in good agreement with those obtained via the dynamical mean field theory.

Presenter: Hoang Anh -Tuan