Emergent Charge Order Near the Doping-Induced Mott-Insulating Quantum Phase Transition in Sr<sub>3</sub>Ru<sub>2</sub>O<sub>7</sub>

ORAL

Abstract

Search for novel electronically ordered states of matter emerging near quantum phase transitions (QPT) is an intriguing frontier of condensed matter physics. Here we investigate the double layered Sr3(Ru1-xMnx)2O7 and its doping-induced quantum phase transition (QPT) from a metal to an antiferromagnetic (AFM) Mott insulator. Using spectroscopic imaging with the scanning tunneling microscope (STM), we visualize the evolution of the electronic states in real- and momentum-space. We find a pseudogap phase that develops with doping to form a weak Mott insulating (Δ ~ 100meV) state. Near the QPT, we discover a spatial electronic reorganization into a commensurate checkerboard charge order. These findings share close resemblance to the well-established universal charge order in the pseudogap phase of cuprates. Our experiments and complementary tight-binding model calculations provide insights into the origin and ubiquity of the incipient charge order that emanates from doped Mott insulators.

*U.S. National Science Foundation (NSF) CAREER under award No. DMR-1654482.

–

Presenters

  • Justin Leshen

    • Physics, Applied Physics and Astronomy, Binghamton Univ

Authors

  • Justin Leshen

    • Physics, Applied Physics and Astronomy, Binghamton Univ

  • Mariam Kavai

    • Physics, Applied Physics and Astronomy, Binghamton Univ

  • Ioannis Giannakis

    • Physics, Applied Physics and Astronomy, Binghamton Univ

  • Yoshio Kaneko

    • RIKEN Center for Emergent Matter Science (CEMS)
    • RIKEN Center for Emergent Matter Science

  • Yoshinori Tokura

    • RIKEN Center for Emergent Matter Science (CEMS)
    • CEMS, RIKEN
    • RIKEN
    • Department of Applied Physics and Quantum Phase Electronics Center, University of Tokyo
    • RIKEN Center for Emergent Matter Science
    • Center for Emergent Matter Science (CEMS), RIKEN
    • Department of Applied Physics and Quantum Phase Electronics Center (QPEC), University of Tokyo

  • Shantanu Mukherjee

    • Physics, Applied Physics and Astronomy, Binghamton Univ

  • Wei-Cheng Lee

    • Binghamton University
    • Physics, Binghamton Univ
    • Physics, Applied Physics and Astronomy, Binghamton Univ

  • Pegor Aynajian

    • Physics, Applied Physics and Astronomy, Binghamton Univ