Spin and charge ordering in the dimerized Hubbard model

2000 ◽  
Vol 61 (23) ◽  
pp. 15667-15675 ◽  
Author(s):  
S. Caprara ◽  
M. Avignon ◽  
O. Navarro
Keyword(s):  
Hubbard Model ◽  
Charge Ordering ◽  
Spin And Charge Ordering

scholarly journals Neutron diffraction study of spin and charge ordering in SrFeO3−δ

2012 ◽  
Vol 85 (18) ◽  
Author(s):  
M. Reehuis ◽  
C. Ulrich ◽  
A. Maljuk ◽  
Ch. Niedermayer ◽  
B. Ouladdiaf ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Charge Ordering ◽  
Spin And Charge Ordering

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.

scholarly journals Charge Ordering under a Magnetic Field in the Extended Hubbard Model

2003 ◽  
Vol 17 (20n21) ◽  
pp. 1103-1110
Author(s):  
Duc Anh Le ◽  
Anh Tuan Hoang ◽  
Toan Thang Nguyen
Keyword(s):  
Magnetic Field ◽  
Critical Temperature ◽  
Hubbard Model ◽  
Charge Ordering ◽  
Coherent Potential Approximation ◽  
Extended Hubbard Model ◽  
Potential Approximation ◽  
Relative Variation ◽  
Band Filling ◽  
The One

We study the charge ordering behavior under magnetic field H in the extended Hubbard model within the coherent potential approximation. At quarter filling, for small H we find that the relative variation of critical temperature is quadratic with the coefficient α smaller than the one for conventional spin-Peierls systems. For intermediate fields, a melting of the charge ordering on decreasing temperature under fixed H at various band filling is found.

Magnetic and optical studies of spin and charge ordering in (TMTTF)2AsF6

2004 ◽  
Vol 114 ◽  
pp. 57-60 ◽  
Author(s):  
M. Dumm ◽  
B. Salameh ◽  
M. Abaker ◽  
L. K. Montgomery ◽  
M. Dressel
Keyword(s):  
Charge Ordering ◽  
Optical Studies ◽  
Spin And Charge Ordering
Sign in / Sign up

Export Citation Format

Share Document