Deviation between magnetic quantum- and Lifshitz- critical point in electron doped cuprate Pr<sub>1-x</sub>LaCe<sub>x</sub>CuO<sub>4-δ</sub>

ORAL

Abstract

Since high-Tc superconductivity in copper oxide (cuprate) and Fe-based material arises near the anti-ferromagnetic (AF) order phase boundary, relation between the magnetic quantum criticality and superconductivity has attracted extensive interest. On the other hand, there is an argument in many novel superconductors that the key role in inducing superconductivity is played by Lifshitz transition which leads to Fermi surface transformation without symmetry breaking.
We performed systematic doping and temperature dependent muon spin rotation (μSR) measurement and angle resolved photoemission spectroscopy (ARPES) on the electron-doped cuprate Pr1-xLaCexCuO4-δ in order to resolve the interplay among the magnetic quantum criticality, Lifshitz criticality, and superconductivity. Surprisingly, while the long-range AF order phase boundary is located around heavily under doped regime, the Lifshitz transition associated with nodal hole pocket takes place in the vicinity of optimal doping concentration. In this talk, we will present the magnetic and electronic phase diagram of electron doped cuprate Pr1-xLaCexCuO4-δ, and discuss the implication of our results on the generic phase diagram of high-Tc superconductors.

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Presenters

  • Dongjoon Song

    • Physics, Yonsei University
    • IBS-CCES, Seoul National University
    • National Institute of Advanced Industrial Science and Technology

Authors

  • Dongjoon Song

    • Physics, Yonsei University
    • IBS-CCES, Seoul National University
    • National Institute of Advanced Industrial Science and Technology

  • Suheon Lee

    • Physics, Chung-Ang University

  • Woobin Jung

    • CCES-IBS
    • IBS-CCES, Seoul National University

  • Seung-Ryoung Park

    • Physics, Incheon National University

  • Shigeyuki Ishida

    • National Institute of Advanced Industrial Science and Technology
    • National Institute of Advanced Industrial Science and Technology)
    • AIST

  • Yoshiyuki Yoshida

    • AIST
    • National Institute of Advanced Industrial Science and Technology)
    • National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
    • National Institute of Advanced Industrial Science and Technology

  • Hiroshi Eisaki

    • National Institute of Advanced Industrial Science and Technology
    • AIST
    • National Inst. Adv. Industrial Science & Technology, Tsukuba
    • National Institute of Advanced Industrial Science and Technology)
    • Electronics and Photonics Research Institute National Institute of Advanced Industrial Science and Technology, Japan

  • Kwang-Yong Choi

    • Chung-Ang University
    • Physics, Chung-Ang University

  • Changyoung Kim

    • Department of Physics and Astronomy, Seoul National University (SNU)
    • Physics and astronomy, Seoul National University
    • Seoul National University
    • CCES-IBS
    • Institute for Basic Science
    • IBS-CCES, Seoul National University