2003/03/21 by N. A. Frederick, M. B. Maple · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Atomic physics #Chemistry #Condensed matter physics #Coulomb #Electric field #Electrical resistivity and conductivity #Electron #Ground state #Inelastic neutron scattering #Iron-based superconductors research #Magnetic field #Magnetic susceptibility #Materials science #Multiplet #Neutron scattering #Nuclear physics #Physics #Rare-earth and actinide compounds #Scattering #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/15/27/310
published as J. Phys.: Condens. Matter v. 15, 4789 (2003) · 8 pages, 2 figures, submitted to Journal of Physics: Condensed Matter
arxiv created 2003/03/21 · openalex publication_date 2003/06/27 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The temperature T and magnetic field H dependences of the electrical resistivity ρ of the recently discovered heavy-fermion superconductor PrOs 4 Sb 12 have features that are associated with the splitting of the Pr 3+ Hund's rule multiplet by the crystalline electric field (CEF). These features are apparently due to magnetic exchange and aspherical Coulomb scattering from the thermally populated CEF-split Pr 3+ energy levels. The ρ( T ) data in zero magnetic field can be described well by calculations based on CEF theory for various ratios of magnetic exchange and aspherical Coulomb scattering, and yield CEF parameters that are qualitatively consistent with those previously derived from magnetic susceptibility, specific heat, and inelastic neutron scattering measurements. Calculated ρ( H ) isotherms for a Γ 3 ground state qualitatively account for the 'dome-shaped' feature in the measured ρ( H ) isotherms.