Single-Site Non-Fermi Liquid Behaviors in a Diluted 4$f^2$ System Y${}_{1-x}$Pr${}_x$Ir${}_2$Zn${}_{20}$

Abstract

Electrical resistivity $\rho (T)$ and specific heat $C(T)$ measurements have been made on the diluted 4$f^2$ system Y(Pr)Ir${}_2$Zn${}_{20}$. Both data of $\rho$ and magnetic specific heat $C_{\mathrm{m}}$ per Pr ion are well scaled as a function of $T/T_0$, where $T_0$ is a characteristic temperature of non-Fermi liquid (NFL) behaviors. Furthermore, the temperature dependences of $\rho$ and $C_{\mathrm{m}}/T$ agree with the NFL behaviors predicted by the two-channel Kondo model for the strong coupling limit. Therefore, we infer that the observed NFL behaviors result from the single-site quadrupole Kondo effect due to the hybridization of the 4$f^2$ states with multi-channel conduction electrons.

13 pages, 5figures

References in corpus (14)

• New directions in the pursuit of Majorana fermions in solid state systems
• Quantum Criticality in Heavy Fermion Metals
• Hastatic Order in URu2Si2
• Quadrupole-Driven Non-Fermi Liquid and Magnetic-Field Induced Heavy Fermion States in a Non-Kramers Doublet System
• Non-Fermi Liquid and Fermi Liquid in Two-Channel Anderson Lattice Model: Theory for Pr$A_2$Al${}_{20}$ ($A$=V, Ti) and PrIr${}_2$Zn${}_{20}$
• Conformal Field Theory Approach to the Kondo Effect
• Diagonal composite order in two-channel Kondo lattice
• Non-Fermi Liquid Behavior of U-impurity with $f^2$-Singlet Ground State
• Resolution of Entropy $\ln \sqrt{2}$ by Ordering in Two-Channel Kondo Lattice
• Non-Fermi Liquid Behavior in Dilute Quadrupolar System Pr${}_x$La${}_{1-x}$Pb${}_3$ with $x$$\le$0.05
• Realization of Heavy Local Fermi Liquid and Non-Fermi Liquid in f${}^2$ Crystalline-Electric-Field Singlet-Triplet Configuration
• Magnetically Robust Non-Fermi Liquid Behavior in Heavy Fermion Systems with f^2-Configuration: Competition between Crystalline-Electric-Field and Kondo-Yosida Singlets
• f-Electron-Nuclear Hyperfine-Coupled Multiplets in the Unconventional Charge Order Phase of Filled Skutterudite PrRu4P12
• Hexadecapolar Kondo effect in URu${}_2$Si${}_2$?

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