scholarly journals Interplay of frustration, magnetism, charge ordering, and covalency in the ionic Hubbard model forNa0.5CoO2

2009 ◽  
Vol 79 (16) ◽  
Author(s):  
Jaime Merino ◽  
B. J. Powell ◽  
Ross H. McKenzie
Keyword(s):  
Hubbard Model ◽  
Charge Ordering ◽  
Ionic Hubbard Model

scholarly journals Dynamical Charge Structure Factor of a One-Dimensional Ionic Hubbard Model in the Low-Energy Region

2019 ◽  
Vol 88 (5) ◽  
pp. 054709
Author(s):  
Yuhei Komaki ◽  
Yuma Iwase ◽  
Shogo Yanagimatsu ◽  
Yoshiyuki Muta ◽  
Nobuya Maeshima ◽  
...  
Keyword(s):  
Hubbard Model ◽  
Structure Factor ◽  
Energy Region ◽  
Low Energy ◽  
Charge Structure ◽  
One Dimensional ◽  
Ionic Hubbard Model ◽  
Dynamical Charge

Quantum Integrability of 1D Ionic Hubbard Model

2020 ◽  
Vol 532 (3) ◽  
pp. 1900601
Author(s):  
Abolfath Hosseinzadeh ◽  
Seyed Akbar Jafari
Keyword(s):  
Hubbard Model ◽  
Quantum Integrability ◽  
Ionic Hubbard Model

scholarly journals Effects of correlations on honeycomb lattice in ionic-Hubbard model

2015 ◽  
Vol 379 (14-15) ◽  
pp. 1053-1056 ◽  
Author(s):  
M. Ebrahimkhas ◽  
Z. Drezhegrighash ◽  
E. Soltani
Keyword(s):  
Hubbard Model ◽  
Honeycomb Lattice ◽  
Ionic Hubbard Model

scholarly journals Flow equations for the ionic Hubbard model

2009 ◽  
Vol 373 (48) ◽  
pp. 4479-4483 ◽  
Author(s):  
Mohsen Hafez ◽  
S.A. Jafari ◽  
M.R. Abolhassani
Keyword(s):  
Hubbard Model ◽  
Flow Equations ◽  
Ionic Hubbard Model

REENTRANT CHARGE ORDERING BEHAVIOUR IN THE EXTENDED HUBBARD MODEL

2001 ◽  
Vol 15 (26) ◽  
pp. 1217-1224 ◽  
Author(s):  
ANH TUAN HOANG
Keyword(s):  
Hubbard Model ◽  
Three Dimensional ◽  
Charge Ordering ◽  
Coherent Potential Approximation ◽  
Coulomb Energy ◽  
Extended Hubbard Model ◽  
Potential Approximation ◽  
Ordering Transition

We study the charge ordering behavior in a three-dimensional extended Hubbard model using the Coherent potential approximation (CPA). It is shown that the charge ordering transition occurs due to the competition between kinetic and Coulomb energy. At various band fillings a simple reentrant behavior of the charge ordering transition is found.

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