Local Probe Studies of the Orbital Texture of a Single-Layer Mott Insulator

ORAL

Abstract

Mott insulators are insulating phases induced by strong electron correlation that can lead to exotic states such as high-temperature superconductivity and quantum spin liquids. Recent advances in van der Waals material synthesis enable the exploration of novel Mott systems in the two-dimensional limit. Here we present the characterization of the single-layer Mott insulator 1T-TaSe2 via energy-, spatial-, and momentum-resolved measurement of its electronic structure by scanning tunneling microscopy/spectroscopy and angle-resolved photoemission spectroscopy. Our study establishes single-layer 1T-TaSe2 as a novel Mott insulator, thus providing an ideal experimental platform for investigating strong correlation physics in two-dimensional materials.

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Presenters

  • Yi Chen

    • University of California, Berkeley

Authors

  • Yi Chen

    • University of California, Berkeley

  • Wei Ruan

    • University of California, Berkeley

  • Meng Wu

    • University of California, Berkeley
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  • Shujie Tang

    • ALS
    • Lawrence Berkeley National Laboratory
    • Lawrance Berkeley National Laboratory
    • Stanford University
    • SIMES, Stanford University
    • Advanced Light Source, Lawrence Berkeley National Laboratory

  • Hyejin Ryu

    • Lawrence Berkeley National Laboratory
    • Lawrance Berkeley National Laboratory
    • Lawrence Berkeley Nat. Lab

  • Hsin-Zon Tsai

    • University of California, Berkeley
    • UC Berkeley

  • Ryan Lee

    • University of California, Berkeley

  • Salman Abdul Gaffar Kahn

    • University of California, Berkeley

  • Franklin Liou

    • University of California, Berkeley

  • Caihong Jia

    • University of California, Berkeley

  • Oliver R Albertini

    • Georgetown University

  • Hongyu Xiong

    • Stanford University

  • Tao Jia

    • Stanford University
    • GLAM, Stanford University

  • Zhi Liu

    • Chinese Academy of Sciences, Shanghai Institute of Microsystem and Information Technology
    • Shanghai Institute of Microsystem and Information Technology

  • Jonathan Sobota

    • Stanford University
    • Department of Applied Physics, Stanford University
    • SLAC National Accelerator Laboratory

  • Amy Liu

    • Georgetown University

  • Joel Moore

    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley, California 94720, USA
    • University of California, Berkeley and Lawrence Berkeley National Laboratory
    • Physics, University of California, Berkeley
    • University of California, Berkeley, and Lawrence Berkeley National Laboratory

  • Zhi-Xun Shen

    • Stanford University
    • SLAC National Accelerator Laboratory

  • Steven G. Louie

    • Physics, UC Berkeley
    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley
    • Physics Department, UC Berkeley and Lawrence Berkeley National Lab
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • Physics, University of California at Berkeley
    • University of California at Berkeley and Lawrence Berkeley National Lab
    • University of California at Berkeley and Lawrence Berkeley National Laboratory
    • Physics, University of California, Berkeley
    • UC Berkeley and Lawrence Berkeley National Lab
    • Physics, University of California - Berkeley
    • Physics and Materials Sciences, University of California at Berkeley and Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Lab and University of California, Berkeley
    • University of California - Berkeley, Lawrence Berkeley National Laboratory

  • Sung-Kwan Mo

    • ALS
    • Lawrence Berkeley National Laboratory
    • Lawrance Berkeley National Laboratory
    • Lawrence Berkeley Nat. Lab
    • Advanced Light Source, Lawrence Berkeley National Laboratory

  • Michael F Crommie

    • Physics, UC Berkeley
    • University of California, Berkeley
    • Lawrence Berkeley National Laboratory and UC Berkeley
    • Department of Physics, University of California at Berkeley
    • Physics, University of California - Berkeley