Abstract
We observed quantum oscillations in thermoelectric and magnetic torque signals in noncentrosymmetric superconductor . One oscillatory frequency stems from the orbits formed by magnetic breakdown, while others are from two-dimensional-like Fermi surfaces near the topological nodal rings. Our comprehensive understanding of the Fermi surface topology of , including nailing down the Fermi level and detecting the Berry phases near the nodal rings, is crucial for searching plausible topological superconductivity in its bulk and surface states.
- Received 10 January 2019
- Revised 11 March 2019
DOI:https://doi.org/10.1103/PhysRevB.99.104516
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