Gauging away the Stoner model: Engineering unconventional metallic ferromagnetism with artificial gauge fields

Abstract

For nearly a century, the Stoner model has dominated research in itinerant ferromagnetism, yet recent work on ultracold, optically trapped Fermi gases suggests that phase separation of spins occurs independent of long-range magnetic order. In this paper, we consider the breakdown of the Stoner criterion in a Landau-Fermi liquid with weak non-zero gauge field. Due to a process analogous to Kohn's theory of a metal-insulator transition, we find the stability of a Fermi liquid phase in the absence of non-quasiparticle contributions to the response is strongly dependent on Landau parameters of mixed partial waves. Our work paves the way for the description of novel spintronic hardware in the language of Landau-Fermi liquid transport.

arXiv comment30 pages, 2 figures

References in corpus (52)

• Spintronics: Fundamentals and applications
• Artificial gauge potentials for neutral atoms
• Realization of the Hofstadter Hamiltonian with ultracold atoms in optical lattices
• Spin-orbit coupling in quantum gases
• Spin-Orbit Coupled Degenerate Fermi Gases
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Berry Curvature on the Fermi Surface: Anomalous Hall Effect as a Topological Fermi-Liquid Property
• Experimental realization of a two-dimensional synthetic spin-orbit coupling in ultracold Fermi gases
• Cold atoms in non-Abelian gauge potentials: From the Hofstadter "moth" to lattice gauge theory
• Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms
• Realistic Rashba and Dressehaus spin-orbit coupling for neutral atoms
• Artificial gauge fields in materials and engineered systems
• Fermi liquid instabilities in the spin channel
• The spin Hall effect in a quantum gas
• Non-Abelian optical lattices: Anomalous quantum Hall effect and Dirac Fermions
• Spin transverse force on spin current in an electric field
• Spin-orbit coupling and spin Hall effect for neutral atoms without spin-flips
• Correlations and Pair Formation in a Repulsively Interacting Fermi Gas
• Spin-Orbit Coupling Induced Coherent Production of Feshbach Molecules in a Degenerate Fermi Gas
• Dynamic generation of spin orbit coupling
• Non-Abelian gauge field theory of the spin-orbit interaction and a perfect spin filter
• Exploring the ferromagnetic behaviour of a repulsive Fermi gas via spin dynamics
• Spin-orbit coupling and Berry phase with ultracold atoms in 2D optical lattices
• Ultracold atomic gases in non-Abelian gauge potentials: The case of constant Wilson loop
• Ultracold atomic gas in non-Abelian "magnetic" fields: the quantum Hall effect supremacy
• Chiral spin resonance and spin-Hall conductivity in the presence of the electron-electron interactions
• Correlated versus Ferromagnetic State in Repulsively Interacting Two-Component Fermi Gases
• Time-resolved observation of competing attractive and repulsive short-range correlations in strongly interacting Fermi gases
• Phase Separation in Mixtures of Repulsive Fermi Gases Driven by Mass Difference
• Two-Dimensional Electron Gas with Cold Atoms in Non-Abelian Gauge Potentials
• Ferromagnetism and its stability from the one-magnon spectrum in twisted bilayer graphene
• Generation of pure superconducting spin current in magnetic heterostructures via non-locally induced magnetism due to Landau Fermi-liquid effects
• Limits on dynamically generated spin-orbit coupling: Absence of $l=1$ Pomeranchuk instabilities in metals
• Theory of a chiral Fermi liquid: general formalism
• Unified description of dynamics of a repulsive two-component Fermi gas
• Transverse spin dynamics in a spin-polarized Fermi liquid
• Robustness of a local Fermi Liquid against Ferromagnetism and Phase Separation
• Theory of transverse spin dynamics in a polarized Fermi liquid and an itinerant ferromagnet
• The Conditions for $l=1$ Pomeranchuk Instability in a Fermi Liquid
• Spin-resolved orbital magnetization in Rashba two-dimensional electron gas
• Dispersion Instability in Strongly Interacting Electron Liquids
• A generalized Stoner criterion and versatile spin ordering in two-dimensional spin-orbit coupled electron systems
• Effective lattice model for collective modes in a Fermi liquid with spin-orbit coupling
• Interplay of phase separation and itinerant magnetism for correlated few fermions in a double-well
• Spin waves in quasi-equilibrium spin systems
• Gauge transformations of Spin-Orbit interactions in graphene
• Itinerant chiral ferromagnetism in a trapped Rashba spin-orbit coupled Fermi gas
• The 'Higgs' amplitude mode in weak ferromagnetic metals
• Spin Orbit Magnetism and Unconventional Superconductivity
• Polarization in a three-dimensional Fermi gas with Rabi coupling
• Fermi liquid theory and ferromagnetism
• Quantum spin transport and dynamics through a novel F/N junction