scholarly journals Magnetism and orbital ordering in an interacting three-band model: A dynamical mean-field study

2009 ◽  
Vol 80 (23) ◽  
Author(s):  
Ching-Kit Chan ◽  
Philipp Werner ◽  
Andrew J. Millis
Keyword(s):  
Field Study ◽  
Mean Field ◽  
Band Model ◽  
Orbital Ordering

scholarly journals Band Degeneracy and the Mott Transition: Dynamical Mean Field Study

1997 ◽  
Vol 11 (06) ◽  
pp. 729-751 ◽  
Author(s):  
Henrik Kajueter ◽  
Gabriel Kotliar
Keyword(s):  
Hubbard Model ◽  
Field Study ◽  
Mean Field ◽  
Mott Transition ◽  
Band Model ◽  
Infinite Dimensions ◽  
Orbital Degeneracy ◽  
Atomic Exchange ◽  
The One

We investigate the Mott transition in infinite dimensions in the orbitally degenerate Hubbard model. We find that the qualitative features of the Mott transition found in the one-band model are also present in the orbitally degenerate case. Surprisingly, the quantitative aspects of the density driven Mott transition around density one are not very sensitive to orbital degeneracy, justifying the quantitative success of the one-band model which was previously applied to orbitally degenerate systems. We contrast this with quantities that have a sizeable dependence on the orbital degeneracy and comment on the role of the intra-atomic exchange J.

scholarly journals A beyond mean-field study of the Tavis-Cummings model

2019 ◽  
Author(s):  
C. Tejera-Centeno ◽  
P. Pérez-Fernández ◽  
J. M. Arias
Keyword(s):  
Field Study ◽  
Mean Field

scholarly journals Collective Modes in Excitonic Magnets: Dynamical Mean-Field Study

2019 ◽  
Vol 122 (12) ◽  
Author(s):  
D. Geffroy ◽  
J. Kaufmann ◽  
A. Hariki ◽  
P. Gunacker ◽  
A. Hausoel ◽  
...  
Keyword(s):  
Field Study ◽  
Mean Field ◽  
Collective Modes

π excitation and resonant neutron scattering: A mean-field study

1997 ◽  
Vol 282-287 ◽  
pp. 1685-1686
Author(s):  
H. Kohno ◽  
B. Normand ◽  
H. Fukuyama
Keyword(s):  
Neutron Scattering ◽  
Field Study ◽  
Mean Field
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