13 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
7 papers
Antiferromagnetic Chern insulator in centrosymmetric systems
Morad Ebrahimkhas, Götz S. Uhrig, Walter Hofstetter +1
An antiferromagnetic Chern insulator (AFCI) can exist if the effect of the time-reversal transformation on the electronic state cannot be compensated by a space group operation. Th…
A New Black Hole Solution In Dilaton Gravity Inspired By Power-Law Electrodynamics
Younes Younesizadeh, Amir A. Ahmad, Ali Hassan Ahmed +2
In this work, a new class of slowly rotating black hole solutions in dilaton gravity has been obtained where dilaton field is coupled with nonlinear Maxwell invariant. The backgrou…
Lattice symmetry and emergence of antiferromagnetic quantum Hall states
Morad Ebrahimkhas, Mohsen Hafez-Torbati, Walter Hofstetter
Strong local interaction in systems with non-trivial topological bands can stabilize quantum states such as magnetic topological insulators. We investigate the influence of the lat…
Quantum Phase transition in the two dimensional ionic-Hubbard model
A. Shahbazy, M. Ebrahimkhas
We employ the dynamical mean field approximation to study the effects of ionic potential () on the square lattice Hubbard model. At half-filling when the staggered potential ($Δ…
Some applications of Caristi's fixed point theorem in metric space
Farshid Khojasteh, Erdal Karapinar, Hasan Khandani
In this work, partial answers to Reich, Mizoguchi and Takahashi, and Amini-Harandi's conjectures are presented via a light version of Caristi's fixed point theorem. Moreover, we in…
Effects of correlations on honeycomb lattice in ionic-Hubbard Model
M. Ebrahimkhas, Z. Drezhegrighash, E. Soltani
In a honeycomb lattice the symmetry has been broken by adding an ionic potential and a single-particle gap was generated in the spectrum. We have employed the iterative perturbatio…
Exact Diagonalization Study of 2D Hubbard Model on Honeycomb Lattice: Semi-metal-Insulator Transition
M. Ebrahimkhas
Phase transition in a honeycomb lattice is studied by the means of the two dimensional Hubbard model and the exact diagonalization dynamical mean field theory at zero temperature.…