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

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	2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781943580422
Publication status	Published - 2018 Aug 6
Event	2018 Conference on Lasers and Electro-Optics, CLEO 2018 - San Jose, United States Duration: 2018 May 13 → 2018 May 18

Publication series

Name	2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

Other

Other	2018 Conference on Lasers and Electro-Optics, CLEO 2018
Country/Territory	United States
City	San Jose
Period	18/5/13 → 18/5/18

ASJC Scopus subject areas

Instrumentation
Atomic and Molecular Physics, and Optics

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 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings [8426669] (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc..

Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe₂-graphene-Bi₂Se₃ heterostructures. / Cha, Soonyoung; Noh, Minji; Kim, Je Hyun et al.

2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. 8426669 (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings).

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 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings., 8426669, 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2018 Conference on Lasers and Electro-Optics, CLEO 2018, San Jose, United States, 18/5/13.

Cha S, Noh M, Kim JH, Son J, Bae H, Lee D et al. Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe₂-graphene-Bi₂Se₃ heterostructures. In 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. 8426669. (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings).

Cha, Soonyoung ; Noh, Minji ; Kim, Je Hyun et al. / Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe₂-graphene-Bi₂Se₃ heterostructures. 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings).

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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 - Cha, Soonyoung

AU - Noh, Minji

AU - Kim, Je Hyun

AU - Son, Jangyup

AU - Bae, Hyemin

AU - Lee, Doeon

AU - Kim, Hoil

AU - Lee, Jekwan

AU - Shin, Hoseung

AU - Sim, Sangwan

AU - Yang, Seunghoon

AU - Lee, Chul Ho

AU - Jo, Moon Ho

AU - Kim, Jun Sung

AU - Kim, Dohun

AU - Choi, Hyunyong

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N2 - 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.

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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M3 - Conference contribution

AN - SCOPUS:85052596680

SN - 9781943580422

T3 - 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

BT - 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2018 Conference on Lasers and Electro-Optics, CLEO 2018

Y2 - 13 May 2018 through 18 May 2018

ER -