scholarly journals Mean-field solution of the Hubbard model: the magnetic phase diagram

2014 ◽  
Vol 35 (3) ◽  
pp. 035023 ◽  
Author(s):  
Y Claveau ◽  
B Arnaud ◽  
S Di Matteo
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Magnetic Phase ◽  
Mean Field ◽  
Magnetic Phase Diagram ◽  
Field Solution

scholarly journals Incommensurate Spin-Density Wave in Two-Dimensional Hubbard Model

2012 ◽  
Vol 190 ◽  
pp. 67-70 ◽  
Author(s):  
M.A. Timirgazin ◽  
Anatoly K. Arzhnikov ◽  
A.V. Vedyayev
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Ground State ◽  
Magnetic Phase ◽  
Density Wave ◽  
Spin Density Wave ◽  
Magnetic Phase Diagram ◽  
Two Dimensional ◽  
Magnetic Phases ◽  
Model Relation

We consider the magnetic phase diagram of the two-dimensional Hubbard model ona square lattice.We take into account both spiral and collinear incommensurate magnetic states.The possibility of phase separation of spiral magnetic phases is taken into consideration as well.Our study shows that all the listed phases appear to be the ground state at certain parametersof the model. Relation of the obtained results to real materials, e.g. Cu-based high-temperaturesuperconductors, is discussed.

Magnetic phase diagram of the anisotropic multi-band Hubbard model

2007 ◽  
Vol 244 (7) ◽  
pp. 2331-2337 ◽  
Author(s):  
P. G. J. van Dongen ◽  
C. Knecht ◽  
N. Blümer
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Multi Band

Exact magnetic phase diagram of the one-dimensional Hubbard model

2000 ◽  
Vol 281-282 ◽  
pp. 831-833
Author(s):  
C Yang ◽  
A.N Kocharian ◽  
Y.L Chiang
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
One Dimensional ◽  
The One

MAGNETIC PHASE DIAGRAM OF THE HUBBARD MODEL ON THE AB2 CHAIN

2013 ◽  
Vol 27 (20) ◽  
pp. 1350144
Author(s):  
A. C. NASCIMENTO ◽  
ANDRE M. C. SOUZA
Keyword(s):  
Phase Diagram ◽  
Magnetic Properties ◽  
Hubbard Model ◽  
Function Method ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Electron Interaction ◽  
Hartree Fock ◽  
Band Filling ◽  
Complete Investigation

In this paper, a complete investigation of the magnetic properties of the Hubbard model on the AB2 chain is presented. We evaluate the magnetic phase diagram as a function of the electron–electron interaction and band filling by using the Green's function method within the Hartree–Fock approximation. Our results are in agreement with Lieb's theorem and the system shows ferromagnetic, ferrimagnetic, and paramagnetic phases.

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