Emergent Spinon Dispersion and Symmetry Breaking in Two-Channel Kondo Lattices

Abstract

Two-channel Kondo lattice serves as a model for a growing family of heavy-fermion compounds. We employ the dynamical large-N technique and go beyond the independent bath approximation to study this model both numerically and analytically using renormalization group ideas. We show that the Kondo effect induces dynamic magnetic correlations that lead to an emergent spinon dispersion. Furthermore, we develop a quantitative framework that interpolates between infinite dimension where the channel-symmetry broken results of mean-field theory are confirmed, and one-dimension where the channel symmetry is restored and a critical fractionalized mode is found.

References in corpus (9)

• Sum Rules and Ward Identities in the Kondo Lattice
• Anyons in Multichannel Kondo Systems
• Schwinger Boson approach to the fully screened Kondo model
• Nonlocal Kondo effect and quantum critical phase in heavy fermion metals
• Large-N Approach to the Two-Channel Kondo Lattice
• Emergent moments in a Hund's impurity
• Collective excitations from composite orders in Kondo lattice with non-Kramers doublets
• Schwinger boson approach for the dynamical mean-field theory of the Kondo lattice
• Topological semimetals without quasiparticles

Cited by in corpus (12)

• Matrix Product Study of Spin Fractionalization in the 1D Kondo Insulator
• Dynamic mass generation and topological order in overscreened Kondo lattices
• Interplay of charge and spin fluctuations in a Hund's coupled impurity
• Algebraic Hastatic Order in One-Dimensional Two-Channel Kondo Lattice
• Topological ground state degeneracy of the two-channel Kondo lattice
• Dynamic-RKKY induced time-reversal symmetry breaking and chiral spin liquids
• Towards Entanglement Entropy of Random Large-N Theories
• A mesoscopic device for a realization of the Topological Kondo effect
• Bosonization solution of the Kondo lattice in a Luttinger liquid
• Antiferromagnetism and Stripe Channel Order in the $\mathrm{SU}(N)$-Symmetric Two-Channel Kondo Lattice Model
• Higher-Dimensional Chirally Stabilized Fixed Points and Their Deformations
• Emergence of topological defects and spin liquid in a two-orbital spin-fermion model on the honeycomb lattice