Statistical fluxes and the Curie-Weiss metal state
Abstract
We predict a new state of matter in the triangular t-J model in a high doping regime. Due to the altered role of quantum statistics the spins are “localized” in statistical Landau orbits, while the charge carriers form a Bose metal that feels the spins through random gauge fields. In contrast to the Fermi-liquid state, this state naturally exhibits a Curie-Weiss susceptibility, large thermopower, and linear-temperature resistivity, explaining the physics of NaxCoO2 at x>0.5. A “smoking gun” prediction for neutron scattering is presented.
- Publication:
-
Physical Review B
- Pub Date:
- September 2011
- DOI:
- 10.1103/PhysRevB.84.113113
- arXiv:
- arXiv:1102.2941
- Bibcode:
- 2011PhRvB..84k3113W
- Keywords:
-
- 71.10.Hf;
- 71.27.+a;
- 72.80.Ga;
- Non-Fermi-liquid ground states electron phase diagrams and phase transitions in model systems;
- Strongly correlated electron systems;
- heavy fermions;
- Transition-metal compounds;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 5 pages,4 figures