Quantum frequency doubling in the topological insulator Bi2Se3

Pan He; Hiroki Isobe; Dapeng Zhu; Chuang-Han Hsu; Liang Fu; Hyunsoo Yang

doi:10.1038/s41467-021-20983-1

Nature Communications (Jan 2021)

Quantum frequency doubling in the topological insulator Bi2Se3

Pan He,
Hiroki Isobe,
Dapeng Zhu,
Chuang-Han Hsu,
Liang Fu,
Hyunsoo Yang

Affiliations

Pan He: Department of Electrical and Computer Engineering, National University of Singapore
Hiroki Isobe: Department of Physics, Massachusetts Institute of Technology
Dapeng Zhu: Department of Electrical and Computer Engineering, National University of Singapore
Chuang-Han Hsu: Department of Electrical and Computer Engineering, National University of Singapore
Liang Fu: Department of Physics, Massachusetts Institute of Technology
Hyunsoo Yang: Department of Electrical and Computer Engineering, National University of Singapore

DOI: https://doi.org/10.1038/s41467-021-20983-1
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 7

Abstract

Read online

Berry curvature dipole (BCD) leads to the nonlinear Hall effect manifested as a frequency doubling in topological materials. Here, the authors report electric frequency doubling in the absence of BCD and magnetic field on a surface of Bi2Se3 due to skew scattering arising from inherent chirality of the topological surface states.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

About the journal