YSix closely related YbT${}_2$Zn${}_{20}$ (T = Fe, Co, Ru, Rh, Os, Ir) heavy fermion compounds with large local moment degeneracy

Abstract

Heavy fermion compounds represent one of the most strongly correlated forms of electronic matter and give rise to low temperature states that range from small moment ordering to exotic superconductivity, both of which are often in close proximity to quantum critical points. These strong electronic correlations are associated with the transfer of entropy from the local moment degrees of freedom to the conduction electrons, and, as such, are intimately related to the low temperature degeneracy of the (originally) moment bearing ion. Here we report the discovery of six closely related Yb-based heavy fermion compounds, YbT${}_2$Zn${}_{20}$, that are members of the larger family of dilute rare earth bearing compounds: RT${}_2$Zn${}_{20}$ (T = Fe, Co, Ru, Rh, Os, Ir). This discovery doubles the total number of Yb-based heavy fermion materials. Given these compounds' dilute nature, systematic changes in T only weakly perturb the Yb site and allow for insight into the effects of degeneracy on the thermodynamic and transport properties of these model correlated electron systems.

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Cited by in corpus (55)

• Unified explanation of the Kadowaki-Woods ratio in strongly correlated materials
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• New Materials Physics
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• Magnetic properties of RFe${}_2$Zn${}_{20}$ and RCo${}_2$Zn${}_{20}$(R = Y, Nd, Sm, Gd - Lu)
• Emergent spin-valley-orbital physics by spontaneous parity breaking
• Unusual Field-Insensitive Phase Transition and Kondo Behavior in SmTi${}_2$Al${}_{20}$
• Spontaneous multipole ordering by local parity mixing
• Grüneisen parameter studies on heavy fermion quantum criticality
• Variation of the magnetic ordering in GdT${}_2$Zn${}_{20}$ (T= Fe, Ru, Os, Co, Rh and Ir) and its correlation with the electronic structure of isostructural YT${}_2$Zn${}_{20}$
• Super-heavy fermion material as metallic refrigerant for adiabatic demagnetization cooling
• Anisotropic heavy Fermi-liquid formation in the valence fluctuating $\alpha$-YbAlB${}_4$
• Low-Energy Optical Phonon Modes in the Caged Compound LaRu2Zn20
• Preserved entropy and fragile magnetism
• Magnetic properties of Gd_xY_{1-x}Fe_2Zn_{20}: dilute, large, $\text{S}$ moments in a nearly ferromagnetic Fermi liquid
• Fermi Surface Properties, Metamgnetic Transition and Quantum Phase Transition of CeRu${}_2$Si${}_2$ and Its Alloys Probed by the dHvA Effect--Fermi Surface Studies on the Itinerant and Localized Dichotomy of $f$ Electron Nature
• Unusual weak magnetic exchange in two different structure types: YbPt${}_2$Sn and YbPt${}_2$In
• Triangular Kondo lattice in $\mathrm{Yb}{\mathrm{V}}_6\mathrm{S}{\mathrm{n}}_6$ and its quantum critical behaviors in magnetic field
• Probing Strongly Correlated 4f-Orbital Symmetry of the Ground State in Yb Compounds by Linear Dichroism in Core-Level Photoemission
• Itinerant-Electron Magnet of the Pyrochlore Lattice: Indium-Doped YMn2Zn20
• Magnetic, specific heat and electrical transport properties of Frank-Kasper cage compounds RTM${}_2$Al${}_{20}$ [R = Eu,Gd and La ; TM = V,Ti]
• Unusual signatures of the ferromagnetic transition in the heavy Fermion compound UMn${}_2$Al${}_{20}$
• Magnetic Order in TbCo2Zn20 and TbFe2Zn20
• Thermoelectric Power of the YbT${}_2$Zn${}_{20}$ (T = Fe, Ru, Os, Ir, Rh, and Co) Heavy Fermions
• Superconductivity in Cage Compounds La$T{r}_2$Al${}_{20}$ with $Tr$ = Ti, V, Nb, and Ta
• Crystal Chemistry and Magnetic Properties of Manganese Zinc Alloy "YMn2Zn20" Comprising a Mn Pyrochlore Lattice
• Multiband electronic characterization of the complex intermetallic cage system Y${}_{1-x}$Gd${}_x$Co${}_2$Zn${}_{20}$
• Physical properties of the very heavy fermion YbCu4Ni
• Neutron scattering and scaling behavior in URu2Zn20 and YbFe2Zn20
• Large Diamagnetism of AV2Al20 (A = Y and La)
• Isotropic Γ_6 Ground State in Caged Compound NdRu2Zn20
• Search for Pressure Induced Quantum Criticality in YbFe2Zn20
• Single crystal growth and physical properties of a new uranium compound URhIn${}_5$
• Tuning the electronic hybridization in the heavy fermion cage compound YbFe${}_2$Zn${}_{20}$ with Cd-doping
• Heavy Fermion scaling: Uranium versus Cerium and Ytterbium compounds
• Thermal and magnetic properties of a low-temperature antiferromagnet Ce${}_4$Pt${}_{12}$Sn${}_{25}$
• Effect of magnetic field in heavy-fermion compound YbCo${}_2$Zn${}_{20}$
• Microscopic Observation of Heavy Quasiparticle Formation in the Intermediate Valence Compound EuNi${}_2$P${}_2$: ${}^{31}$P NMR Study
• Tuning the Kondo effect in Yb(Fe${}_{1-x}$Co${}_x$)${}_2$Zn${}_{20}$
• Study of 57Fe Mossbauer effect in RFe2Zn20 ( R = Lu, Yb, Gd)
• Low Curie-temperature ferromagnetic phase in SmPt2Cd20 possibly accompanied by strong quantum fluctuations
• Magnetic and Thermal Properties of SmRh${}_2$Zn${}_{20}$ Single Crystal
• Magnetic properties of Gd$T_2$Zn${}_{20}$ (T = Fe, Co) investigated by X-ray diffraction and spectroscopy
• Collapse of Kondo state and ferromagnetic quantum phase transition in YbFe${}_2$Zn${}_{20}$
• Crystal, local atomic and electronic structures of YbFe${}_2$Zn${}_{20-x}$Cd${}_x$ ($0\le x\le 1.4$): a multi-band system with possible coexistence of light and heavy fermions
• Comment on "Unconventional enhancement of ferromagnetic interactions in Cd-doped GdFe2Zn20 single crystals studied by ESR and 57Fe Mossbauer spectroscopies"
• Unusually strong electronic correlation and field-induced ordered phase in YbCo${}_2$
• Physical properties of $R$Co${}_2$Al${}_8$ ($R=$ La, Ce, Pr, Nd and Sm) single crystals: An emerging structure-type for anisotropic Kondo lattice studies
• Collinear Magnetic Structure in the Diamond Network Magnet EuTi${}_2$Al${}_{20}$
• Intrinsic Magnetic Excitations and Heavy-Fermion Formation in the Frustrated Mn Pyrochlore System YMn${}_{2+\delta }$Zn${}_{20-x}{X}_x$ ($X$ = In and Al) Revealed by Nuclear Magnetic Resonance and Nuclear Quadrupole Resonance Measurements
• Observation of field-induced single-ion magnetic anisotropy in a multiorbital Kondo alloy $(\mathrm{Lu},\mathrm{Yb}){\mathrm{Rh}}_2{\mathrm{Zn}}_{20}$
• Continuous-time Quantum Monte Carlo Approach for Impurity Anderson Models with Phonon-assisted Hybridizations
• Two stage pressure-induced Yb valence change in the Hexagonal Laves Phase YbAg${}_2$: Investigation by time differential perturbed angular $\gamma$-$\gamma$ correlation spectroscopy method and density functional calculations
• Quantum critical point followed by Kondo-like behavior due to Cu substitution in itinerant, antiferromagnet ${\text{La}}_2{\text{(Cu}}_x{\text{Ni}}_{1-x}{)}_7$
• Growth and characterization of BaZnGa