Dimensional-crossover-driven Mott transition in the frustrated Hubbard model.

  title={Dimensional-crossover-driven Mott transition in the frustrated Hubbard model.},
  author={M. Raczkowski and Fakher F. Assaad},
  journal={Physical review letters},
  volume={109 12},
We study the Mott transition in a frustrated Hubbard model with next-nearest neighbor hopping at half-filling. The interplay between interaction, dimensionality, and geometric frustration closes the one-dimensional Mott gap and gives rise to a metallic phase with Fermi surface pockets. We argue that they emerge as a consequence of remnant one-dimensional umklapp scattering at the momenta with vanishing interchain hopping matrix elements. In this pseudogap phase, enhanced d-wave pairing… 

Figures from this paper

Pseudogap-to-metal transition in the anisotropic two-dimensional Hubbard model
The transition between a metallic and a pseudogap phase in high-$T_c$ cuprate superconductors is the subject of experimental investigations but has not been settled theoretically, even within the
Thermodynamics and magnetism in the two-dimensional to three-dimensional crossover of the Hubbard model
The realization of antiferromagnetic (AF) correlations in ultracold fermionic atoms on an optical lattice is a significant achievement. Experiments have been carried out in one, two, and three
Equivalence of Rashba-Hubbard and Hubbard chains
We review the fact that U(1) gauge symmetry enables the mapping of one-dimensional Hubbard chains with Rashba-type spin orbit coupling to renormalized Hubbard Hamiltonians. The existence of the
A new quasi-one-dimensional compound Ba3TiTe5 and superconductivity induced by pressure
AbstractWe report systematic studies of a new quasi-one-dimensional (quasi-1D) compound, Ba3TiTe5, and the high-pressure induced superconductivity therein. Ba3TiTe5 was synthesized at high pressure
Multi-orbital physics in lithium-molybdenum purple-bronze: going beyond paradigm
Abstract We investigate the role of inter-orbital fluctuations in the low energy physics of a quasi-1D material – lithium molybdenum purple bronze (LMO). It is an exceptional material that may
Anisotropy crossover in the frustrated Hubbard model on four-chain cylinders
Motivated by dimensional crossover in layered organic $\ensuremath{\kappa}$ salts, we determine the phase diagram of a system of four periodically coupled Hubbard chains with frustration at half
Local moments versus itinerant antiferromagnetism: Magnetic phase diagram and spectral properties of the anisotropic square lattice Hubbard model
Using a cluster extension of the dynamical mean-field theory (CDMFT) we map out the magnetic phase diagram of the anisotropic square lattice Hubbard model with nearest-neighbor intrachain $t$ and


Quantum physics in one dimension
1. Peculiarities of d=1 2. Bosonization 3. Luttinger liquids 4. Refinements 5. Microscopic methods 6. Spin 1/2 chains 7. Interacting fermions on a lattice 8. Coupled fermionic chains 9. Disordered
  • R. Rosenfeld
  • Medicine
    Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
  • 2009
  • Mod. Phys. 68, 13
  • 1996
  • Magn. 25, 633
  • 2012
  • Rev. B 86, 035102
  • 2012
  • Rev. B 85, 201101
  • 2012
Phys. Rev. B
  • Phys. Rev. B
  • 2012
Phys. Rev. B
  • Phys. Rev. B
  • 2012
  • Rev. B 84, 193103
  • 2011
  • Rev. B 84, 045112
  • 2011