1999/05/04 by C. M. Varma
Chemistry · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Chemistry #Condensed matter physics #Crystal structure #Crystallography #Fermion #Ferromagnetism #Hamiltonian (control theory) #Heavy fermion #Isostructural #Materials science #Mathematics #Metal #Metallurgy #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Spins #Superconductivity #cond-mat
paper · pdf · doi:10.1103/physrevb.60.r6973
latex
arxiv created 1999/05/04 · openalex publication_date 1999/09/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Lithium vanadate is a heavy-fermion metal with a mass enhancement of O(102) while its isostructural neighbor, lithium titanate, has a mass enhancement of only O(1). The Hamiltonian for them as well as for the manganites (which are ferromagnetic metals) are the same except for a change of the spins of the magnetic ions. The enormous difference in the properties of these compounds raises some puzzling questions about strongly correlated fermions. These are discussed and a solution is provided.