2015/06/30 by Eundeok Mun, E. Mun, S. L. Bud'ko +6 · 15 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Effective mass (spring–mass system) #Electron #Fermi surface #Fermion #Iron-based superconductors research #Magnetic field #Phase transition #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum critical point #Quantum electrodynamics #Quantum mechanics #Quantum oscillations #Quantum phase transition #Quasiparticle #Rare-earth and actinide compounds #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.92.085135
published in Physical Review B 92(8) (American Physical Society)
arxiv created 2015/06/30 · openalex publication_date 2015/08/20 · arxiv updated 2015/08/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Heavy fermion systems are useful for studying quantum criticality because the low energy scale associated with their large effective mass can be tuned by nonthermal control parameters. Here, Shubnikov-de Haas oscillations are observed in YbPtBi, a heavy fermion compound with an exceptionally large effective mass for electrons, at a high magnetic field that reveals the shape of the Fermi surface. In the future these observations, when combined with additional data at lower magnetic fields, could provide important information about quantum criticality in these systems.