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Pressure-Induced Superconductivity and Topological Quantum Phase Transitions in the Topological Semimetal ZrTe2

  • Shihao Zhu
  • , Juefei Wu
  • , Peng Zhu
  • , Cuiying Pei
  • , Qi Wang
  • , Donghan Jia
  • , Xinyu Wang
  • , Yi Zhao
  • , Lingling Gao
  • , Changhua Li
  • , Weizheng Cao
  • , Mingxin Zhang
  • , Lili Zhang
  • , Mingtao Li
  • , Huiyang Gou
  • , Wenge Yang
  • , Jian Sun
  • , Yulin Chen
  • , Zhiwei Wang*
  • , Yugui Yao
  • Yanpeng Qi*
*Corresponding author for this work
  • ShanghaiTech University
  • Beijing Institute of Technology
  • Center for High Pressure Science & Technology Advanced Research
  • CAS - Shanghai Advanced Research Institute
  • Nanjing University
  • University of Oxford

Research output: Contribution to journalArticlepeer-review

Abstract

Topological transition metal dichalcogenides (TMDCs) have attracted much attention due to their potential applications in spintronics and quantum computations. In this work, the structural and electronic properties of topological TMDCs candidate ZrTe2 are systematically investigated under high pressure. A pressure-induced Lifshitz transition is evidenced by the change of charge carrier type as well as the Fermi surface. Superconductivity is observed at around 8.3 GPa without structural phase transition. A typical dome-shape phase diagram is obtained with the maximum Tc of 5.6 K for ZrTe2. Furthermore, the theoretical calculations suggest the presence of multiple pressure-induced topological quantum phase transitions, which coexists with emergence of superconductivity. The results demonstrate that ZrTe2 with nontrivial topology of electronic states displays new ground states upon compression.

Original languageEnglish
Article number2301332
JournalAdvanced Science
Volume10
Issue number35
DOIs
Publication statusPublished - 15 Dec 2023

Keywords

  • high pressure
  • superconductivity
  • topological materials
  • transition metal dichalcogenides

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