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

doi:10.1364/CLEO_QELS.2018.FTh1F.1

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

KU-KIST Graduate School of Converging Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	CLEO
Subtitle of host publication	QELS_Fundamental Science, CLEO_QELS 2018
Publisher	Optica Publishing Group (formerly OSA)
ISBN (Print)	9781943580422
DOIs	https://doi.org/10.1364/CLEO_QELS.2018.FTh1F.1
Publication status	Published - 2018
Event	CLEO: QELS_Fundamental Science, CLEO_QELS 2018 - San Jose, United States Duration: 2018 May 13 → 2018 May 18

Publication series

Name	Optics InfoBase Conference Papers
Volume	Part F93-CLEO_QELS 2018
ISSN (Electronic)	2162-2701

Other

Other	CLEO: QELS_Fundamental Science, CLEO_QELS 2018
Country/Territory	United States
City	San Jose
Period	18/5/13 → 18/5/18

Bibliographical note

Publisher Copyright:
© OSA 2018.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Mechanics of Materials

Access to Document

10.1364/CLEO_QELS.2018.FTh1F.1

Cite this

Cha, S., Noh, M., Kim, J. H., Son, J., Bae, H., Lee, D., Kim, H., Lee, J., Shin, H., Sim, S., Yang, S., Lee, C. H., Jo, M. H., Kim, J. S., Kim, D., & Choi, H. (2018). Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe₂-graphene-Bi₂Se₃ heterostructures. In CLEO: QELS_Fundamental Science, CLEO_QELS 2018 (Optics InfoBase Conference Papers; Vol. Part F93-CLEO_QELS 2018). Optica Publishing Group (formerly OSA). https://doi.org/10.1364/CLEO_QELS.2018.FTh1F.1

Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe₂-graphene-Bi₂Se₃ heterostructures. / Cha, Soonyoung; Noh, Minji; Kim, Je Hyun et al.
CLEO: QELS_Fundamental Science, CLEO_QELS 2018. Optica Publishing Group (formerly OSA), 2018. (Optics InfoBase Conference Papers; Vol. Part F93-CLEO_QELS 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Cha, S, Noh, M, Kim, JH, Son, J, Bae, H, Lee, D, Kim, H, Lee, J, Shin, H, Sim, S, Yang, S, Lee, CH, Jo, MH, Kim, JS, Kim, D & Choi, H 2018, Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe₂-graphene-Bi₂Se₃ heterostructures. in CLEO: QELS_Fundamental Science, CLEO_QELS 2018. Optics InfoBase Conference Papers, vol. Part F93-CLEO_QELS 2018, Optica Publishing Group (formerly OSA), CLEO: QELS_Fundamental Science, CLEO_QELS 2018, San Jose, United States, 18/5/13. https://doi.org/10.1364/CLEO_QELS.2018.FTh1F.1

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title = "Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures",

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.",

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

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AU - Son, Jangyup

AU - Bae, Hyemin

AU - Lee, Doeon

AU - Kim, Hoil

AU - Lee, Jekwan

AU - Shin, Hoseung

AU - Sim, Sangwan

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AU - Kim, Jun Sung

AU - Kim, Dohun

AU - Choi, Hyunyong

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AB - 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.

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