Nonlinear susceptibility: Evidence for antiferroquadrupolar fluctuations and a nonmagnetic Γ1 ground state in the heavy fermion superconductor PrOs4Sb12
E. D. Bauer, P.-C. Ho, M. B. Maple, T. Schauerte, D. L. Cox, F. B. Anders
DOI 10.1103/PhysRevB.73.094511 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Nonlinear susceptibility (χ3) measurements were performed on single crystals of the heavy fermion superconductor PrOs4Sb12 in order to probe the nature of the Pr3+ ground state in the crystalline electric field. Calculations of χ3(T) have been carried out (i) within a mean field model of intersite magnetic and quadrupolar interactions for an ionic (zero hybridization) crystal field Γ1 singlet ground state and a first excited state magnetic triplet, and (ii) within a two-channel Anderson impurity model assuming a Γ23 doublet ground state. The experimental χ3 results are in best agreement with the nonmagnetic Γ1 ground state in the tetrahedral crystalline electric field of the Pr3+ ions with antiferroquadrupolar intersite coupling and weak antiferromagnetic intersite coupling.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.85 | Pressure not reported | unknown |
Similar papers
Specific heat and ac susceptibility studies of the superconducting phase diagram of PrOs4Sb12
similarity 0.96K. Grube et al.
Source status unknown — claims are unverified
High-field ordered and superconducting phases in the heavy-fermion compound PrOs4Sb12
similarity 0.96P.-C. Ho et al.
Source status unknown — claims are unverified
Superconducting PrOs4Sb12: A Thermal Conductivity Study
similarity 0.96G. Seyfarth et al.
Source status unknown — claims are unverified
Superconductivity and heavy fermion behavior in PrOs4Sb12
similarity 0.96E. D. Bauer et al.
Source status unknown — claims are unverified
Probing the Superconducting Gap Symmetry of PrOs4Sb12: A Penetration Depth Study
similarity 0.96Elbert E. M. Chia et al.
Source status unknown — claims are unverified
Crystal Field Potential of PrOs4Sb12: Consequences for Superconductivity
similarity 0.95E. A. Goremychkin et al.
Source status unknown — claims are unverified