Fermi-Surface Reconstruction without Breakdown of Kondo Screening at the Quantum Critical Point

2007/04/13 by Hiroshi Watanabe, Masao Ogata · 4 citations
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.99.136401

published as Phys. Rev. Lett. 99, 136401 (2007) · 4 pages, 3 figures, submitted to Physical Review Letters

arxiv created 2007/04/13 · openalex publication_date 2007/09/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Motivated by recent Hall-effect experiment in YbRh(2)Si(2), we study ground state properties of a Kondo lattice model in a two-dimensional square lattice using variational Monte Carlo method. We show that there are two types of phase transition, an antiferromagnetic transition and a topological one (Fermi-surface reconstruction). In a wide region of parameters, these two transitions occur simultaneously without the breakdown of Kondo screening, accompanied by a discontinuous change of the Hall coefficient. This result is consistent with the experiment and gives a novel theoretical picture for the quantum critical point in heavy-fermion systems.

Citations

• Spin and charge dynamics of the ferromagnetic and antiferromagnetic two-dimensional half-filled Kondo lattice model
• Quantum critical phenomena
• Weak magnetism and non-Fermi liquids near heavy-fermion critical points

Cited by

• Kondo Destruction and Quantum Criticality in Kondo Lattice Systems
• T=0Heavy-Fermion Quantum Critical Point as an Orbital-Selective Mott Transition
• Fermi-surface evolution across the magnetic phase transition in the Kondo lattice model
• Half-filled Kondo lattice on the honeycomb lattice

Related

• Evolution of a Large Fermi Surface in the Kondo Lattice
• Kondo volume collapse, Kondo breakdown, and Fermi surface transitions in heavy-fermion metals
• Fermi surface change across a deconfined quantum critical point
• Deconstruction of the Kondo Effect near the AFM-Quantum Critical Point
• Kondo Destruction and Multipolar Order-- Implications for Heavy Fermion Quantum Criticality