Journal
PHYSICAL REVIEW B
Volume 79, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.115136
Keywords
Cooper pairs; Hubbard model; magnetic moments; magnetic susceptibility; metal-insulator transition; renormalisation; strongly correlated electron systems
Ask authors/readers for more resources
Around a metal-to-insulator transition driven by repulsive interaction (Mott transition) the single-particle excitations and the collective excitations are equally important. Here we present results for the generic susceptibilities at zero temperature in the half-filled Hubbard model in infinite dimensions. Profiting from the high resolution of dynamic density-matrix renormalization at all energies, results for the charge, spin, and Cooper-pair susceptibilities in the metallic and the insulating phase are computed. In the insulating phase, an almost saturated local magnetic moment appears. In the metallic phase a pronounced low-energy peak is found in the spin response. It is the precursor of the magnetic moment in the insulator.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available