Magnetic phase transition of the one-dimensional Hubbard model under fixed chemical potential

1995 ◽  
Vol 7 (26) ◽  
pp. 5045-5051
Author(s):  
H Kiwata
Keyword(s):  
Phase Transition ◽  
Hubbard Model ◽  
Magnetic Phase Transition ◽  
Chemical Potential ◽  
Magnetic Phase ◽  
One Dimensional ◽  
The One

Cyanide-Bridged One-Dimensional Ferromagnetic RuIIIMnIIICoordination Polymer Exhibiting a Field-Induced Magnetic Phase Transition

2009 ◽  
Vol 48 (3) ◽  
pp. 816-818 ◽  
Author(s):  
Jung Hee Yoon ◽  
Houng Sik Yoo ◽  
Hyoung Chan Kim ◽  
Sung Won Yoon ◽  
Byoung Jin Suh ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
One Dimensional

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

scholarly journals Exact Ground-State Properties and Phase Transitions within One-dimensional Hubbard Model in Magnetic Field

2000 ◽  
Vol 14 (29n31) ◽  
pp. 3771-3776
Author(s):  
C. Yang ◽  
A. N. Kocharian ◽  
Y. L. Chiang
Keyword(s):  
Magnetic Field ◽  
Hubbard Model ◽  
Ground State ◽  
Chemical Potential ◽  
Interaction Strength ◽  
Upper And Lower Bounds ◽  
One Dimensional ◽  
Ground State Properties ◽  
Half Filling ◽  
The One

The phase diagram, the Bethe-ansatz ground-state properties, including the chemical potential μ, the spin (magnetic) and charge susceptibilities, are calculated within the one-dimensional Hubbard model in entire range of interaction strength (-∞< U/t<+∞), magnetic field (h≥ 0) and all electron concentrations (0≤n≤1). The continuous and smooth variation of μ with n and h in the vicinity of n=1 points on the gapless character of charge excitations at U<0 and provides rigorous upper and lower bounds for μ. The spin (magnetic) susceptability χ at half-filling changes discontinuously as U→0 and is strongly enhanced by electron repulsion, comparing with that of the non-interactig case. The compressibility κ ch increases with n at U<0 and shows non-monotonous behavior with a dramatic increase at U>0. Variations of κ ch -1 in both repulsive and attractive cases qualitatively well reproduces corresponding behavior of charge stiffness.

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