Journal ArticleDOI
Possible Low-Temperature Strongly Correlated Electron Behavior from Multipole Fluctuations in PrMg3 with Cubic Non-Kramers Γ3 Doublet Ground State
TLDR
In this article, the magnetic and thermodynamic properties of PrMg 3 single crystals were investigated based on the magnetic susceptibility χ( T ) and the specific heat C P ( T ).Citations
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Multipole Orders and Fluctuations in Strongly Correlated Electron Systems
TL;DR: In this article, the authors review experimental and theoretical results on higher electronic multipoles in solids with strong correlations and demonstrate how linear and nonlinear couplings of different multipoles lead to rich phase diagrams and anomalies in physical observables.
Journal ArticleDOI
Kondo Effects and Multipolar Order in the Cubic PrTr2Al20 (Tr=Ti, V)
Akito Sakai,Satoru Nakatsuji +1 more
TL;DR: In this paper, a cubic Γ 3 nonmagnetic ground doublet system was shown to exhibit the quadrupolar Kondo effect with a -ln T dependent resistivity.
Journal ArticleDOI
Superconductivity in the Ferroquadrupolar State in the Quadrupolar Kondo Lattice PrTi$_2$Al$_{20}$
TL;DR: The cubic compound PrTi$_2$Al$20$ exhibits type-II superconductivity at 200$ mK in the nonmagnetic ferroquadrupolar state.
Journal ArticleDOI
Exotic Quadrupolar Phenomena in Non-Kramers Doublet Systems — The Cases of PrT2Zn20 (T = Ir, Rh) and PrT2Al20 (T = V, Ti) —
TL;DR: In this paper, the experimental evidence and related theoretical background on exotic phenomena arising from local quadrupolar degrees of freedom were reviewed and compared on four prototype compounds of PrT2X20 (T = Ir, Rh, X = Zn; T = V, Ti, Al).
Journal ArticleDOI
Kondo Effects and Multipolar Order in the cubic PrTr2Al20 (Tr=Ti, V)
Akito Sakai,Satoru Nakatsuji +1 more
TL;DR: In this paper, a cubic nonmagnetic ground doublet system was shown to exhibit the quadrupolar Kondo effect with a -ln T dependent resistivity and an order at T_O = 2.0 K.
References
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Journal ArticleDOI
Superconductivity and heavy fermion behavior in PrOs 4 Sb 12
TL;DR: In this article, it was shown that superconductivity has been observed in the heavy fermion quasiparticles with an effective mass of approximately 50 µm/e.
Journal ArticleDOI
Quadrupolar Kondo effect in uranium heavy-electron materials?
TL;DR: The possibility of an electric quadrupole Kondo effect for a non-Kramers doublet on a uranium (U) ion in a cubic metallic host is demonstrated by model calculations showing a Kondo upturn in the resistivity, universal quenching of the quadrupolar moment, and a heavy electron anomaly in the electronic specific heat.
Journal ArticleDOI
Magnetic Susceptibility and Specific Heat of the Coqblin-Schrieffer Model
TL;DR: In this article, the exact thermodynamic equations of the Coqblin-Schrieffer model were solved in the scaling regime and the impurity susceptibility and specific heat curves were obtained as a function of temperature for zero field and for impurity spin.
Journal ArticleDOI
Evidence for Magnetic-Field-Induced Quadrupolar Ordering in the Heavy-Fermion Superconductor PrOs4Sb12
Masahumi Kohgi,Kazuaki Iwasa,Motoki Nakajima,Naoto Metoki,Shingo Araki,N. Bernhoeft,Jean-Michel Mignot,Arsen Gukasov,Hideyuki Sato,Yuji Aoki,Hitoshi Sugawara +10 more
TL;DR: In this paper, the authors showed that a small antiferromagnetic moment, parallel to [010] (y -direction), is induced in the field-induced phase (H ∥ z ).
Journal ArticleDOI
Interpretation of Kondo experiments in a magnetic field
K.D. Schotte,U. Schotte +1 more
TL;DR: In this article, the thermodynamic properties of the "resonance level model" for arbitrary spin and magnetic field were calculated for Ag-Fe and found a satisfactory agreement with recent magnetization data on Ag Fe.
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Kondo Effects and Multipolar Order in the Cubic PrTr2Al20 (Tr=Ti, V)
Akito Sakai,Satoru Nakatsuji +1 more