scholarly journals Phase diagram of the Mott transition in a two-band Hubbard model in infinite dimensions

2001 ◽  
Vol 19 (3) ◽  
pp. 375-384 ◽  
Author(s):  
Y. Ōno ◽  
R. Bulla ◽  
A.C. Hewson
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Mott Transition ◽  
Infinite Dimensions

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.

Non-Fermi liquid and Mott transition in the multi-channel two-band Hubbard model in infinite dimensions

2000 ◽  
Vol 281-282 ◽  
pp. 410-411 ◽  
Author(s):  
Yoshiaki Ōno ◽  
Atsushi Tsuruta ◽  
Tamifusa Matsuura ◽  
Yoshihiro Kuroda
Keyword(s):  
Hubbard Model ◽  
Fermi Liquid ◽  
Mott Transition ◽  
Infinite Dimensions

scholarly journals Finite Temperature Mott Transition in the Hubbard Model in Infinite Dimensions

1999 ◽  
Vol 83 (17) ◽  
pp. 3498-3501 ◽  
Author(s):  
Marcelo J. Rozenberg ◽  
R. Chitra ◽  
Gabriel Kotliar
Keyword(s):  
Hubbard Model ◽  
Finite Temperature ◽  
Mott Transition ◽  
Infinite Dimensions

scholarly journals Phase diagram of the Bose-Hubbard Model

1994 ◽  
Vol 26 (7) ◽  
pp. 545-550 ◽  
Author(s):  
J. K Freericks ◽  
H Monien
Keyword(s):  
Phase Diagram ◽  
Hubbard Model

Phase diagram of an extended Hubbard model with correlated hopping at half filling

1995 ◽  
Vol 51 (19) ◽  
pp. 13774-13777 ◽  
Author(s):  
A. A. Aligia ◽  
Liliana Arrachea ◽  
E. R. Gagliano
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Extended Hubbard Model ◽  
Half Filling
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