Anomalous properties of the Hubbard model in infinite dimensions
- 1 January 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 49 (2) , 1458-1461
- https://doi.org/10.1103/physrevb.49.1458
Abstract
Anomalies are found in the resistivity ρ and NMR rate 1/ of the infinite-dimensional Hubbard model using quantum Monte Carlo calculations and the noncrossing approximation. For temperatures greater than the ‘‘Kondo scale’’ , we obtain 1/∼a+bT and ρ∼c+dT (a, b, c, d constants). For temperatures T≪ we infer from a saturation of the effective mass of the carriers that the ground state of the system is a Fermi liquid.
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