Quantum oscillations in the noncentrosymmetric superconductor and topological nodal-line semimetal PbTaSe2

Xitong Xu, Zhibo Kang, Tay Rong Chang, Hsin Lin, Guang Bian, Zhujun Yuan, Zhe Qu, Jinglei Zhang, Shuang Jia

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We observed quantum oscillations in thermoelectric and magnetic torque signals in noncentrosymmetric superconductor PbTaSe2. 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 PbTaSe2, 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.

Original languageEnglish
Article number104516
JournalPhysical Review B
Volume99
Issue number10
DOIs
Publication statusPublished - 2019 Mar 22

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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