Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures

Soonyoung Cha, Minji Noh, Je Hyun Kim, Jangyup Son, Hyemin Bae, Doeon Lee, Hoil Kim, Jekwan Lee, Hoseung Shin, Sangwan Sim, Seunghoon Yang, Chul Ho Lee, Moon Ho Jo, Jun Sung Kim, Dohun Kim, Hyunyong Choi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Using a lateral WSe2-graphene-Bi2Se3 heterostructure, we generate the valley-locked spin photocurrent in ion-liquid gated WSe2 transistor by the circular photogalvanic effect and extract the spin-polarized current in the Bi2Se3 topological insulator using the spin-momentum locking.

    Original languageEnglish
    Title of host publicationCLEO
    Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2018
    PublisherOptica Publishing Group (formerly OSA)
    ISBN (Print)9781943580422
    DOIs
    Publication statusPublished - 2018
    EventCLEO: QELS_Fundamental Science, CLEO_QELS 2018 - San Jose, United States
    Duration: 2018 May 132018 May 18

    Publication series

    NameOptics InfoBase Conference Papers
    VolumePart F93-CLEO_QELS 2018
    ISSN (Electronic)2162-2701

    Other

    OtherCLEO: QELS_Fundamental Science, CLEO_QELS 2018
    Country/TerritoryUnited States
    CitySan Jose
    Period18/5/1318/5/18

    Bibliographical note

    Publisher Copyright:
    © OSA 2018.

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Mechanics of Materials

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