Imaging engineered electronic states in bilayer graphene with a nanopatterned gate (Part III)

ORAL

Abstract

Electrostatic confinement of electrons can be used to engineer custom energy levels, holding great promise for the exploration of interaction-driven phenomena. While quantum dots have been a traditional geometry for such confinement, more complex potential landscapes open new avenues for quantum simulation, band structure engineering, and the controlled study of electron-electron interactions. Such structures have posed significant challenges in both fabrication and characterization with local probes. In this final talk in a series of presentations, I will expand our scanning tunneling microscopy (STM) setup for studying bilayer graphene quantum dots to investigate bilayer graphene devices shaped by engineered patterned gates. Device tunability and spectroscopic imaging results demonstrate STM as a powerful tool for nanoscale imaging of graphene devices with patterned gates, an infinitely versatile and beyond-zero-dimensional platform.

*The authors acknowledge funding support from the Department of Energy, Gordon and Betty Moore Foundation, Office of Naval Research, and National Science Foundation.  K.G.W. acknowledges support from the National Defence Science and Engineering Graduate Fellowship.

Presenters

  • Kristina G Wolinski

    • Princeton University

Authors

  • Kristina G Wolinski

    • Princeton University
  • Haotan Han

    • Princeton University
  • Jiachen Yu

    • Princeton University
    • PRINCETON UNIVERSITY
  • Viliam Vano

    • Princeton University
  • Amir S Mohammadi

    • University of California, Berkeley
  • Ruihua Fan

    • University of California, Berkeley
  • Zhihuan Dong

    • UC Berkeley
    • University of California, Berkeley
  • Noah L Samuelson

    • University of California, Santa Barbara
  • Mikołaj J Metelski

    • Walter Schottky Institute, Technical University of Munich
  • Adrian O Paulus

    • Walter Schottky Institute, Technical University of Munich
  • Takashi Taniguchi

    • National Institute for Materials Science
    • Research Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • International Center for Materials Nanoarchitectonics, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
    • Research Center for Functional Materials, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
  • Kenji Watanabe

    • National Institute for Materials Science
    • Research Center for Functional Materials, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
  • Nathan P Wilson

    • Walter Schottky Institute, Technical University of Munich
  • Andrea F Young

    • University of California, Santa Barbara
  • Michael P Zaletel

    • University of California, Berkeley
  • Ali Yazdani

    • Princeton University