Pressure-Induced Heavy Fermion Superconductivity in the Nonmagnetic Quadrupolar System PrTi2Al20
K. Matsubayashi, T. Tanaka, A. Sakai, S. Nakatsuji, Y. Kubo, Y. Uwatoko
DOI 10.1103/PhysRevLett.109.187004 · Physical Review Letters
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
We report the discovery of a pressure-induced heavy fermion superconductivity in a nonmagnetic orbital ordering state in the cubic compound PrTi2Al20. In particular, we found that the transition temperature and the effective mass associated with the superconductivity are dramatically enhanced as the system approaches the putative quantum critical point of the orbital order. Our experiment indicates that the strong orbital fluctuations may provide a nonmagnetic glue for Cooper pairing.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PrTi2Al20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.2 | Pressure unresolved | unknown |
| PrTi2Al20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.7 | 6.7 GPa | zero_resistance |
| PrTi2Al20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.1 | 8.7 GPa | zero_resistance |
| PrTi2Al20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.1 | 8.7 GPa | onset |
| PrTi2Al20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.1 | 8.7 GPa | midpoint |
| PrV2Al20 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | 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 |
Similar papers
Simultaneous superconducting and antiferroquadrupolar transitions in PrRh2Zn20
similarity 0.96T. Onimaru et al.
Source status unknown — claims are unverified
Generalized spin fluctuation feedback in heavy fermion superconductors
similarity 0.95Adil Amin & D. F. Agterberg
Source status unknown — claims are unverified
Heavy-Fermion Superconductivity in the Quadrupole Ordered State of PrV2Al20
similarity 0.95Masaki Tsujimoto et al.
Source status unknown — claims are unverified
Giant Anisotropic Magnetoresistance due to Purely Orbital Rearrangement in the Quadrupolar Heavy Fermion Superconductor PrV2Al20
similarity 0.94Yasuyuki Shimura et al.
Source status unknown — claims are unverified
Strong coupling superconductivity mediated by three-dimensional anharmonic phonons
similarity 0.94K. Hattori & H. Tsunetsugu
Source status unknown — claims are unverified
Unconventional superconductivity and an ambient-pressure magnetic quantum critical point in single-crystal LaNiC2
similarity 0.93J. F. Landaeta et al.
Source status unknown — claims are unverified