Emergent Chiral Metal near a Kondo Breakdown Quantum Phase Transition

Abstract

The destruction of the Kondo effect in a local-moment metal can lead to a topological non-Fermi-liquid phase, dubbed fractionalized Fermi liquid, with spinon-type excitations and an emergent gauge field. We demonstrate that, if the latter displays an internal $\pi$-flux structure, a chiral heavy-fermion metal emerges near the Kondo-breakdown transition. Utilizing a parton mean-field theory describing the transition between a conventional heavy Fermi liquid and a U(1) fractionalized Fermi liquid, we find a novel intermediate phase near the transition whose emergent flux pattern spontaneously breaks both translation and time-reversal symmetries. This phase is an orbital antiferromagnet, and we derive a Landau-type theory which shows that such a phase generically emerges from a $\pi$-flux spin liquid. We discuss the relevance to pertinent experiments.

arXiv comment12 pages (main paper: 6, supplement: 6) 16 figures (main paper: 4, supplement: 12)

References in corpus (37)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• Hidden Order in the Cuprates
• Locally critical quantum phase transitions in strongly correlated metals
• Non Fermi-Liquid States and Pairing of a general Model of Copper-Oxide Metals
• How do Fermi liquids get heavy and die?
• Weak magnetism and non-Fermi liquids near heavy-fermion critical points
• Fractionalized Fermi liquids
• Quantum phases driven by strong correlations
• Frustration and the Kondo effect in heavy fermion materials
• Coherence scale of the Kondo lattice
• Critical level crossings and gapless spin liquid in the square-lattice spin-$1/2$ $J_1$-$J_2$ Heisenberg antiferromagnet
• Dirac Spin Liquid on the Spin-1/2 Triangular Heisenberg Antiferromagnet
• Emergent Rank-5 'Nematic' Order in URu2Si2
• Global Magnetic Phase Diagram and Local Quantum Criticality in Heavy Fermion Metals
• Quantum Criticality and Global Phase Diagram of Magnetic Heavy Fermions
• Gate-tunable heavy fermions in a moiré Kondo lattice
• Quantum criticality in a metallic spin liquid
• Orbital-selective Mott transitions: Heavy fermions and beyond
• Gapless quantum spin liquid and global phase diagram of the spin-1/2 $J_1$-$J_2$ square antiferromagnetic Heisenberg model
• Four-Spin Terms and the Origin of the Chiral Spin Liquid in Mott Insulators on the Triangular Lattice
• Gapless spin liquid and valence-bond solid in the $J_1-J_2$ Heisenberg model on the square lattice: insights from singlet and triplet excitations
• The case for a U(1)${}_{\pi }$ Quantum Spin Liquid Ground State in the Dipole-Octupole Pyrochlore Ce${}_2$Zr${}_2$O${}_7$
• Sleuthing out exotic quantum spin liquidity in the pyrochlore magnet Ce${}_2$Zr${}_2$O${}_7$
• Quantum phase transitions out of the heavy Fermi liquid
• Chiral Kondo Lattice in Doped MoTe${}_2$/WSe${}_2$ Bilayers
• Gate-tunable heavy fermion quantum criticality in a moiré Kondo lattice
• Quantum spin ice with frustrated transverse exchange: from pi-flux phase to nematic quantum spin liquid
• The underdoped cuprates as fractionalized Fermi liquids: transition to superconductivity
• A model of $d$-wave superconductivity, antiferromagnetism, and charge order on the square lattice
• The Orbitally Selective Mott Phase in Electron Doped Twisted TMDs: A Possible Realization of the Kondo Lattice Model
• Distinguishing dipolar and octupolar quantum spin ices using contrasting magnetostriction signatures
• Kondo breakdown in a spin-1/2 chain of adatoms on a Dirac semimetal
• Quantum phase transition in a two-dimensional Kondo-Heisenberg model: a Schwinger-boson large-N approach
• Fractionalized Fermi Liquid in a Kondo-Heisenberg Model
• Kondo Breakdown via Fractionalization in a Frustrated Kondo Lattice Model
• Inhomogeneous Kondo-lattice in geometrically frustrated Pr${}_2$Ir${}_2$O${}_7$
• Kondo Stripes in an Anderson-Heisenberg Model of Heavy Fermion Systems