1990/01/01 by J. Hopkinson, John Hopkinson, P. Coleman +2
Engineering · Physics and Astronomy · #Advanced Condensed Matter Physics #Art #Condensed matter physics #Electrical resistivity and conductivity #Fermi liquid theory #Fluid Dynamics and Turbulent Flows #Fluid Dynamics and Vibration Analysis #Frustration #Geology #Geomorphology #Heavy fermion #Humanities #Hydraulic flow and structures #Materials science #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quasiparticle #Quenching (fluorescence) #Rare-earth and actinide compounds #Superconductivity #Valence (chemistry) #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.89.267201
published as Phys. Rev. Lett., 89, 267201 (2002). · 4 pages, 2 figures, significant changes
openalex publication_date 1990/01/01 · arxiv created 2002/10/04 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
We propose a two-stage spin-quenching scenario for the unusual heavy fermion state realized in the mixed valent metal LiV2O4. In this theory, local valence fluctuations are responsible for the formation of partially quenched, spin-1 / 2 moments below room temperature. Frustration of the intersite spin couplings then drives the system to produce the heavy Fermi liquid seen at low temperatures. The anomalous resistivity and the sign change of the Hall constant can be understood naturally within this model, which also predicts a unique symmetry for the heavy quasiparticle bands that may be observed in de Haas-van Alphen experiments.