TQT Transformative Quantum Technologies logo
  • En
  • Fr
Get Connected
TQT Transformative Quantum Technologies logo
Get Connected

"Find People, Projects, etc."

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
job
publications
equipment
media
research
projects
people
events
labs
Filter by Categories
Committee
Leadership
Science
Staff
  • Home
  • Research
  • Opportunities
  • Events
  • About
  • Get Connected
  • Institute for Quantum Computing

    Combined momentum- and real-space photoelectric probes of dimensionality-tuned Weyl semimetals

    Go Back Back

    More Topics

    2d 3d ARPES heterostructures joint project materials MoTe2 new ideas nodes seed fund semimetals topological transport UBC Weyl

    Summary

     

    The library of two-dimensional (2D) materials has recently grown to include topological insulators and semimetals. Their incorporation in special device geometries may lead to novel quantum electronics with enhanced functionalities. Weyl semimetals, in particular, offer the most robust form of topological protection. Recent results from our group indicate that Weyl nodes should be observable at room temperature in thin molybdenum ditelluride (MoTe2) and are furthermore tunable by changing dimensionality. Weyl nodes correspond to points of bulk band degeneracy and are separated in momentum space. In this joint project with Dr. Andrea Damascelli’s group at the University of British Columbia (UBC), we utilize micro-angle-resolved photoemission spectroscopy (micro-ARPES) to image in momentum space the Weyl nodes and surface arcs of MoTe2 and further investigate changes induced by lower dimensionality. Once the Weyl nodes are mapped, we perform transport measurements and utilize scanning photocurrent microscopy to image novel photogalvanic effects induced by the Weyl points in real space. We expect this project will pave the way for future materials exploration and device development that exploits the unique properties of 2D materials through combined ARPES and nanoscale device transport studies.

    Figure 1. Sample device geometry. MoTe2 flakes of various thicknesses are transferred on prepatterned gold electrodes deposited on a hexagonal boron nitride (BN)/graphite (Gr) heterostructure and capped with single-layer hBN. The bottom layers provide an ultra-flat substrate for the MoTe2.

     

    Principal Investigator (PI) or Team Coordinator

    Adam Wei Tsen

    sidebar icon sidebar icon sidebar icon

    Share

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn

    Related Content

    Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation

    Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation

    Summary  Entangled photon sources are crucial for quantum computing, quantum sensing, and quantum communication. Of growing importance are sources relying on spontaneous parametric downconversion (SPDC). Unfortunately, these sources of entangled photons are often constrained by momentum conservation laws. To overcome this limitation and expand the possibility of quantum state engineering, we intend to use metasurfaces […]

    February 1, 2023

    PI: Zbig Wasilewski

    Skip Tags entangled photons quantum processing + 1 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Metasurfaces for high-efficiency parametric downconversion and complex quantum state generation
    Repurposing potential drug candidates for the treatment of COVID-19

    Repurposing potential drug candidates for the treatment of COVID-19

    Summary The main protease (Mpro) in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for the coronavirus disease (COVID-19), has emerged as a promising drug target. The scientific community has produced a large number of crystallographic structures of the protease, which mediates viral replication and transcription. These structures report several fragments with varied chemotypes […]

    May 6, 2020

    PI: Subha Kalyaanamoorthy

    Skip Tags biology chemistry + 11 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Repurposing potential drug candidates for the treatment of COVID-19
    Engineering and Characterizing Programmable Interaction Graphs in a Trapped Ion Quantum Simulator
    TQT Computation

    Engineering and Characterizing Programmable Interaction Graphs in a Trapped Ion Quantum Simulator

    Summary   Quantum simulators have the potential to bring unprecedented capabilities in areas such as the discovery of new materials and drugs. Engineering precise and programmable interaction graphs between qubits or spins forms the backbone of simulator applications. The trapped ion system is unique in that the interaction graph between qubits can be programmed, in […]

    July 24, 2018

    PI: Kazi Rajibul Islam

    Skip Tags algorithms characterization + 6 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Engineering and Characterizing Programmable Interaction Graphs in a Trapped Ion Quantum Simulator
    Spin Generation and High-Frequency Detection via the Quantum Nonlinear Anomalous Hall Effect in Weyl Semimetals
    TQT Sensing

    Spin Generation and High-Frequency Detection via the Quantum Nonlinear Anomalous Hall Effect in Weyl Semimetals

    In magnetic conductors, the passage of current yields an electric field in the transverse direction even without an external magnetic field – this is known as the anomalous Hall effect (AHE). This effect can act as a convenient probe of spin ordering, magnetic textures, spin-orbit coupling, and band topology in solids, and can be further […]

    April 19, 2023

    PI: Adam Wei Tsen

    Skip Tags magnetic properties materials + 1 Additional

    • Share on Twitter
    • Share on Facebook
    • Share on LinkedIn
    • Go to Spin Generation and High-Frequency Detection via the Quantum Nonlinear Anomalous Hall Effect in Weyl Semimetals

    Connect with Us

    Join us at the frontier of quantum technology development. Request a visit, explore opportunities, and stay informed.

    Get Connected
    TQT Logo
    First Canada Logo
    • twitter icon
    • facebook icon
    • youtube icon
    • Home
    • Research
    • Opportunities
    • Events
    • About
    • Get Connected
    • Institute for Quantum Computing
    TQT Logo
    • Home
    • Research
    • Opportunities
    • Events
    • About
    • Get Connected
    • Institute for Quantum Computing
    • twitter icon
    • facebook icon
    • youtube icon
    First Canada Logo
    TQT Logo
    • twitter icon
    • facebook icon
    • youtube icon
    • Research
    • Overview
    • Updates
    • Projects
    • Publications
    • Labs
    • Quantum Innovation Cycle
    • Opportunities
    • Overview
    • Quantum for Health Design Challenge
    • Quantum for Environment Design Challenge
    • Quantum Seed
    • Technology Development
    • Open Positions
    • Events
    • All Events
    • About
    • Overview
    • People
    • Media
    • Contact
    First Canada Logo