Magnetic phase diagram of the Hubbard model with next-nearest neighbor hopping

2009 ◽  
Vol 404 (19) ◽  
pp. 3249-3252 ◽  
Author(s):  
R. Peters ◽  
Th. Pruschke
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Nearest Neighbor ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram

Magnetic Phase Diagram and Magnetization Dynamics of Frustrated Spin-Chain Compounds

2009 ◽  
Vol 152-153 ◽  
pp. 233-236 ◽  
Author(s):  
Yu. B. Kudasov
Keyword(s):  
Phase Diagram ◽  
Low Temperature ◽  
Nearest Neighbor ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Magnetization Dynamics ◽  
Ising Spin ◽  
Glauber Theory

The magnetic phase diagram of Ising spin chains packed into the frustrated triangular lattice is discussed. A structure of a low-temperature phase depends strongly on interactions between the next-to-nearest-neighbor chains because they lift the degeneracy of the triangular AFM Ising model. That is why, a variety of low-temperature phases is observed in CsCoCl3, Ca3Co2O6, and Sr5Rh4O12. On the contrary, the high-temperature phase (honeycomb AFM structure) is unique. The frustrated Ising chain systems demonstrate an unusual and very slow magnetization dynamics. A model of the magnetization dynamics similar to the Glauber theory is developed.

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
Sign in / Sign up

Export Citation Format

Share Document