Non-local detection and electric modulation of valley- coupled spin photocurrents in WSe2-Bi2Se3 heterostructure device

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

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


We perform a non-local circular photogalvanic measurement and directly generate the valley-coupled spin-polarized electrons from WSe2 to Bi2Se3 topological insulators. Our WSe2- Bi2Se3 heterostructure offers a new optoelectronic platform toward the electrically-controllable valley-spin degree of freedom.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationScience and Innovations, CLEO_SI 2018
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
Publication statusPublished - 2018
EventCLEO: Science and Innovations, CLEO_SI 2018 - San Jose, United States
Duration: 2018 May 132018 May 18

Publication series

NameOptics InfoBase Conference Papers
VolumePart F94-CLEO_SI 2018


OtherCLEO: Science and Innovations, CLEO_SI 2018
Country/TerritoryUnited States
CitySan Jose

Bibliographical note

Publisher Copyright:
© OSA 2018.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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