Proposed realization of itinerant ferromagnetism in optical lattices

Abstract

We propose to realize the itinerant ferromagnetism of two-component cold fermionic atoms in the $p$-orbital bands in optical lattices. The band flatness in the two-dimensional honeycomb lattice dramatically amplifies the interaction effect driving the ferromagnetic transition even with a relatively weak repulsive interaction. This scheme has the advantage that the stability of the system can be maintained without suffering decaying to the molecular state as one approaches the Feshbach resonance from the side with positive scattering length. Experimental signatures and detections are also discussed.

accepted by Physical Review A

References in corpus (14)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• Flat bands and Wigner crystallization in the honeycomb optical lattice
• Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
• A lattice of double wells for manipulating pairs of cold atoms
• Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms
• The $p_{x,y}$-orbital counterpart of graphene: cold atoms in the honeycomb optical lattice
• State preparation and dynamics of ultracold atoms in higher lattice orbitals
• Tomographic RF Spectroscopy of a Trapped Fermi Gas at Unitarity
• Intrinsic Heating and Cooling in Adiabatic Processes for Bosons in Optical Lattices
• Bond algebraic liquid phase in strongly correlated multiflavor cold atom systems
• Incommensurate superfluidity of bosons in a double-well optical lattice
• Quantum Antiferromagnetism of Fermions in Optical Lattices with Half-filled p-band
• Itinerant Ferromagnetism in an Atom Trap
• Magnetism of Cold Fermionic Atoms on p-Band of an Optical Lattice

Cited by in corpus (60)

• Polarons, Dressed Molecules, and Itinerant Ferromagnetism in ultracold Fermi gases
• Exotic electronic states in the world of flat bands: from theory to material
• Exciton Polaritons in a Two-Dimensional Lieb Lattice with Spin-Orbit Coupling
• Competition between pairing and ferromagnetic instabilities in ultracold Fermi gases near Feshbach resonances
• Correlations and Pair Formation in a Repulsively Interacting Fermi Gas
• The honeycomb lattice with multi-orbital structure: topological and quantum anomalous Hall insulators with large gaps
• Superconducting Transitions in Flat Band Systems
• Physics of higher orbital bands in optical lattices: a review
• Flat Bands in Twisted Bilayers of Two-Dimensional Polar Materials
• Room temperature magnetism on the zigzag edges of phosphorene nanoribbons
• Ferromagnetism and Wigner crystallization in Kagome graphene and related structures
• Quantum anomalous Hall states in the $p$-orbital honeycomb optical lattices
• Stable Fulde-Ferrell-Larkin-Ovchinnikov pairing states in 2D and 3D optical lattices
• Exact Results on Itinerant Ferromagnetism in Multi-orbital Systems on Square and Cubic Lattices
• Circuit Quantum Electrodynamics Simulator of Flat Band Physics in Lieb lattice
• Weyl points created by a three-dimensional flat band
• Orbital magnetoelectric effect in zigzag nanoribbons of p-band systems
• Nonperturbative Effects on the Ferromagnetic Transition in Repulsive Fermi Gases
• Itinerant ferromagnetism in an interacting Fermi gas with mass imbalance
• Two-dimensional Kagome Materials: Theoretical Insights, Experimental Realizations, and Electronic Structures
• $F$-wave pairing of cold atoms in optical lattices
• Evidence of orbit-selective electronic kagome lattice with planar flat-band in correlated paramagnetic YCr6Ge6
• Stoner ferromagnetism of a strongly interacting Fermi gas in the quasirepulsive regime
• Van Hove Singularity Arising from Mexican-Hat-Shaped Inverted Bands in the Topological Insulator Sn-doped Bi${}_{1.1}$Sb${}_{0.9}$Te${}_2$S
• Superfluid density and collective modes of fermion superfluid in dice lattice
• Frustrated Cooper pairing and the $f$-wave supersolidity
• Flat-band Ferromagnetism of the SU$(N)$ Hubbard Model on the Tasaki Lattice
• Spin Excitations and Flat Electronic Bands in a Cr-based Kagome Superconductor
• Fermi-liquid Landau parameters for a nondegenerate band: Spin and charge instabilities in the extended Hubbard model
• Phase-separated Ferromagnetism in Spin-imbalanced Fermi Atoms Loaded on an Optical Ladder: a DMRG study
• Sign problem free quantum Monte-Carlo study on thermodynamic properties and magnetic phase transitions in orbital-active itinerant ferromagnets
• Spin-orbital exchange of strongly interacting fermions on the $p$-band of a two-dimensional optical lattice
• Finite range and upper branch effects on itinerant ferromagnetism in repulsive Fermi gases: Bethe-Goldstone ladder resummation approach
• Ferromagnetic phase of spinel compound MgV${}_2$O${}_4$ and its spintronics properties
• Renormalization group analysis of $p$-orbital Bose-Einstein condensates in a square optical lattice
• Infinite bound states and $1/n$ energy spectrum induced by a Coulomb-like potential of type III in a flat band system
• Prediction of single-atom-thick transition metal nitride CrN${}_4$ with a square-planar network and high-temperature ferromagnetism
• Infinite bound states and hydrogen atom-like energy spectrum induced by a flat band
• Exact results for itinerant ferromagnetism in a $t_{2g}$ orbital system on cubic and square lattices
• Orbital-Active Dirac Materials from the Symmetry Principle
• Valley-contrasting interband transitions and excitons in symmetrically biased dice model
• Proposed realization of critical regions in a one-dimensional flat band lattice with a quasi-periodic potential
• Superconducting proximity effect in flat band systems
• Hund's coupling-assisted ferromagnetic percolation transition in a multiorbital flat band
• Spin-Induced Orbital Frustration in a Hexagonal Optical Lattice
• Exchange interactions in the Hubbard-Stratonovich transformation for the stability analysis of itinerant ferromagnetism
• Moiré semiconductors on twisted bilayer dice lattice
• Bound states in the continuum (BIC) protected by self-sustained potential barriers in a flat band system
• Triplet $p$-wave pairing correlation in low doped zigzag graphene nanoribbons
• Exact mobility line and mobility ring in the complex energy plane of a flat band lattice with a non-Hermitian quasiperiodic potential
• Mott insulating phases and magnetism of fermions in a double-well optical lattice
• Itinerant ferromagnetism in the repulsive Hubbard chain with anisotropic odd-wave attraction
• Topological orbital superfluid with chiral d-wave order in a rotating optical lattice
• Emergent Weyl Fermions in an Orbital Multipolar Ordering Phase
• Making artificial ${\text{p}}_{x,y}$-orbital honeycomb electron lattice on metal surface
• Itinerant magnetism in Weyl spin-orbit coupled Fermi gas
• Realization of Flat Band with Possible Nontrivial Topology in Electronic Kagome Lattice
• Topological superfluid of spinless Fermi gases in p-band honeycomb optical lattices with on-site rotation
• Phase diagram of strongly attractive $p$-orbital fermions on optical lattices
• High-pressure modulation of breathing kagome lattice: Cascade of Lifshitz transitions and evolution of the electronic structure