Abstract
We have found that magnetically ordered noncentrosymmetric exhibits superconductivity under very high pressures of near 11 GPa. The transition temperature is 3.5 K, the highest in all Ce heavy-fermion superconductors, implying quite strong electron pairings with a high-energy scale. Several physical quantities show diverging features of a quantum phase transition, however, its criticality appears in a rather narrow range of pressure. The upper critical field is estimated to be 18 T, much higher than the Pauli paramagnetic limiting field of 6.5 T, indicating spin-triplet electron pairings correlated with its noncentrosymmetric structure.
- Received 14 September 2018
- Revised 18 February 2019
- Corrected 17 December 2019
DOI:https://doi.org/10.1103/PhysRevB.99.100501
©2019 American Physical Society
Physics Subject Headings (PhySH)
Corrections
17 December 2019
Correction: The third paragraph from last contained a source citation error and has been fixed.