Nonperturbative nonlinear transport in a topological semimetal

ORAL

Abstract

Ultrafast light-matter interaction can engineer topological responses in quantum materials via the creation of photon-dressed Floquet-Bloch states. Here, we report on the time-resolved transport properties of Td-MoTe2, a type-II Weyl semimetal, driven by a femtosecond pulse of mid-infrared laser light. Measurements were performed using an ultrafast optoelectronic device architecture based on laser-triggered photoconductive switches and waveguides. We observed a helicity-dependent injection current and an anomalous Hall effect, both of which scaled linearly with the applied laser field, in violation of the perturbative description of nonlinear optics and transport. Analysis of the results indicates that such nonperturbative nonlinear transport is a direct probe of the emergence and hybridization of Floquet-Bloch states. This work may provide deeper understanding toward programming technologically relevant responses in quantum materials with light.

–

Presenters

  • Kateryna Kusyak

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for the Structure & Dynamics of Matter

Authors

  • Kateryna Kusyak

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for the Structure & Dynamics of Matter

  • Matthew W Day

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Felix Sturm

    • Columbia University

  • Dongbin Shin

    • Gwangju Institute of Science and Technology

  • Benedikt F Schulte

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Hope M Bretscher

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Dorothee Herrmann

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Xinyu Li

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Sivasruthi Kesavan

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Jesse Hagelstein

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Jonathan DeStefano

    • University of Washington

  • Sara M Langner

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamcis of Matter

  • Yunfei Huang

    • Columbia University

  • Takashi Taniguchi

    • Kyoto Univ
    • National Institute for Materials Science
    • Research Center for Materials Nanoarchitectonics
    • Research Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • National Institute for Materials Sciences
    • NIMS
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Material Science
    • International Center for Materials Nanoarchitectonics, NIMS, Japan
    • International Center for Materials Nanoarchitectonics, Tsukuba
    • National Institue for Materials Science
    • Kyoto University
    • National Institute of Materials Science
    • International Center for Materials Nanoarchitectonics and National Institute for Materials Science

  • Kenji Watanabe

    • National Institute for Materials Science
    • NIMS
    • Research Center for Electronic and Optical Materials, National Institute for Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Material Science

  • Toru Matsuyama

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Guido Meier

    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for Structure and Dynamics of Matter

  • Jiun-Haw Chu

    • University of Washington
    • Department of Physics, University of Washington, Seattle, WA 98105

  • Angel Rubio

    • Max Planck Institute for the Structure & Dynamics of Matter
    • Max Planck Institute for the Structure and Dynamics of Matter
    • Max Planck Institute for the Structure &
    • Max Planck Institute for the Structure & Dynamics of Matter; Center for Computational Quantum Physics, Flatiron Institute
    • Center for Computational Quantum Physics, Flatiron Institute
    • Max Planck Institute for the Structure and Dynamics of Matter - Flatiron Institute
    • Max Planck Institute for Structure and Dynamics of Matter

  • Dante M Kennes

    • RWTH Aachen University

  • Michael A Sentef

    • MPSD Hamburg
    • University of Bremen

  • James W McIver

    • Max Planck Institute for the Structure &
    • Columbia University