2019/11/30 by Atsushi Tsuruta, Kazumasa Miyake · 7 citations
Chemistry · Materials Science · Physics and Astronomy · #Anderson impurity model #Chemistry #Condensed matter physics #Crossover #Electrical resistivity and conductivity #Electron #Fermi Gamma-ray Space Telescope #Fermi level #Fermi liquid theory #Impurity #Ion #Lattice (music) #Magnetic and transport properties of perovskites and related materials #Materials science #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #cond-mat.str-el
paper · pdf · open access · doi:10.1088/2399-6528/ac42dd
published in Journal of Physics Communications 6(1), 015006 (IOP Publishing) · 32 pages, 8 figures
openalex created_date 2019/11/22 · openalex publication_date 2021/12/14 · arxiv created 2022/02/15 · arxiv updated 2022/02/16 · openalex updated_date 2026/08/05
Abstract A theory for treating the unconventional non-Fermi liquid temperature dependence of physical quantities, such as the resistivity, in the Pr-based two-channel Anderson impurities system is developed. It is shown that their temperature dependences are essentially the same as those in the pure lattice system except for the case of extremely low concentration of Pr ions that is difficult to realize by the controlled experiments. This result is consistent with recent observations in diluted Pr-1-2-20 system Y 1− x Pr x Ir 2 Zn 20 ( x = 0.024, 0.044, 0.085, and 0.44) reported in Yamane et al (2018) Phys. Rev. Lett. 121 , 077206, and is quite different from that in the case of single-channel Anderson impurities system in which the crossover between behaviors of the local Fermi liquid and heavy Fermi liquid occurs at around moderate concentration of impurities as observed in Ce-based heavy fermion system La 1− x Ce x Cu 6 .