Extended Metal-Insulator Crossover with Strong Antiferromagnetic Spin
Correlation in Half-Filled 3D Hubbard Model
Extended Metal-Insulator Crossover with Strong Antiferromagnetic Spin
Correlation in Half-Filled 3D Hubbard Model
The Hubbard model at temperature above the N\'{e}el transition, despite of being a paramagnet, can exhibit rich physics due to the interplay of Fermi surface, on-site interaction $U$ and thermal fluctuations. Nevertheless, the understanding of the crossover physics remains only at a qualitative level, because of the intrinsically smooth behavior. …