2017/01/31 by Panch Ram, Brijesh Kumar · 4 citations
Chemistry · Physics and Astronomy · #Chemistry #Condensed matter physics #Electron #Fermi surface #Ground state #Kondo effect #Kondo insulator #Magnetic field #Magnetization #Oscillation (cell signaling) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum oscillations #Quasiparticle #Rare-earth and actinide compounds #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.96.075115
published as Phys. Rev. B 96, 075115 (2017) · 5 pages, 5 figures
openalex publication_date 2017/08/09 · arxiv created 2017/08/16 · arxiv updated 2017/08/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
The Kondo lattice model of spin-1/2 local moments coupled to the conduction electrons at half filling is studied for its orbital response to magnetic field on bipartite lattices. Through an effective charge dynamics, in a canonical representation of electrons that appropriately describes the Kondo insulating ground state, the magnetization is found to show de Haas-van Alphen oscillations from intermediate to weak Kondo coupling. These oscillations are ascribed to the inversion of a dispersion of the gapped charge quasiparticles, whose chemical potential surface is measured by the oscillation frequency. Such oscillations are also predicted to occur in spin-density wave insulators.