2004/03/19 by J. W. Clark, Clark, J. W., V. A. Khodel +3
Physics and Astronomy · #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Rare-earth and actinide compounds #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0403522
4 pages, 3 figures
arxiv created 2004/03/19 · openalex publication_date 2004/03/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The spin susceptibility χ(T) of strongly correlated Fermi systems is investigated in the density region where Fermi-liquid theory fails. We attribute this failure to a specific quantum phase transition associated with a rearrangement of the Landau state at low temperatures T, retaining the assumption that the Landau quasiparticle picture survives in a generic sense. Taking into account the resulting modification of the quasiparticle istribution function, the spin susceptibility χ(T) is shown to contain a Curie-Weiss component χ\rm CW(T)∼ (T-Θ\rm W)-1, with the Weiss temperature Θ\rm W vanishing at the critical density for the transition.