Multipole and superconducting state in PrIr2Zn20 probed by muon spin relaxation
W. Higemoto, T. U. Ito, K. Ninomiya, T. Onimaru, K. T. Matsumoto, T. Takabatake
DOI 10.1103/PhysRevB.85.235152 · Physical Review B
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Abstract
We performed muon spin rotation and relaxation (μSR) measurements in the caged-structure heavy-fermion system PrIr2Zn20 to elucidate its magnetic and superconducting properties. Temperature-independent μSR spectra were observed below 1 K, indicating that the phase transition at 0.11 K is of a nonmagnetic origin, most probably pure quadrupole ordering. In the superconducting phase, no sign of unconventional superconductivity, such as superconductivity with broken time-reversal symmetry, was seen below Tc=0.05 K. We also observed spontaneous muon spin precession in zero field in the paramagnetic phase below 15 K, suggesting that unusual coupling between 141Pr nuclei and muons is realized in PrIr2Zn20.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PrIr2Zn20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.05 | Pressure not reported | unknown |
| PrIr2Zn20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.05 | Pressure not reported | unknown |
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| PrPt4Ge12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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