Ultrafast Manipulation of Topologically Enhanced Surface Transport Driven by Mid-infrared and Terahertz Pulses in BiSe

Overview

Journal Nat Commun

Specialty Biology

Date 2019 Feb 7

PMID 30723197

Citations 6

Authors

L Luo

X Yang

X Liu

Z Liu

C Vaswani

D Cheng

M Mootz

X Zhao

Y Yao

C-Z Wang

K-M Ho

I E Perakis

M Dobrowolska

J K Furdyna

J Wang

Affiliations

Soon will be listed here.

Abstract

Topology-protected surface transport of ultimate thinness in three-dimensional topological insulators (TIs) is breaking new ground in quantum science and technology. Yet a challenge remains on how to disentangle and selectively control surface helical spin transport from the bulk contribution. Here we use the mid-infrared and terahertz (THz) photoexcitation of exclusive intraband transitions to enable ultrafast manipulation of surface THz conductivity in BiSe. The unique, transient electronic state is characterized by frequency-dependent carrier relaxations that directly distinguish the faster surface channel than the bulk with no complication from interband excitations or need for reduced bulk doping. We determine the topological enhancement ratio between bulk and surface scattering rates, i.e., γ/γ ~3.80 in equilibrium. The ultra-broadband, wavelength-selective pumping may be applied to emerging topological semimetals for separation and control of the protected transport connected with the Weyl nodes from other bulk bands.

Citing Articles

Optical generation of strong-field terahertz radiation and its application in nonlinear terahertz metasurfaces.

Ma Z, Li P, Chen S, Wu X Nanophotonics. 2024; 11(9):1847-1862.

PMID: 39633923 PMC: 11501794. DOI: 10.1515/nanoph-2021-0714.

Chirality manipulation of ultrafast phase switches in a correlated CDW-Weyl semimetal.

Cheng B, Cheng D, Jiang T, Xia W, Song B, Mootz M Nat Commun. 2024; 15(1):785.

PMID: 38278821 PMC: 10817907. DOI: 10.1038/s41467-024-45036-1.

Single-shot ultrafast terahertz photography.

Dong J, You P, Tomasino A, Yurtsever A, Morandotti R Nat Commun. 2023; 14(1):1704.

PMID: 36973242 PMC: 10042990. DOI: 10.1038/s41467-023-37285-3.

Two-dimensional Dirac plasmon-polaritons in graphene, 3D topological insulator and hybrid systems.

In C, Kim U, Choi H Light Sci Appl. 2022; 11(1):313.

PMID: 36302746 PMC: 9613982. DOI: 10.1038/s41377-022-01012-2.

2D BiSe materials for optoelectronics.

Wang F, Yang S, Zhai T iScience. 2021; 24(11):103291.

PMID: 34765917 PMC: 8571505. DOI: 10.1016/j.isci.2021.103291.

References

Wu C, Bernevig B, Zhang S . Helical liquid and the edge of quantum spin Hall systems. Phys Rev Lett. 2006; 96(10):106401. DOI: 10.1103/PhysRevLett.96.106401. View

Moore J . The birth of topological insulators. Nature. 2010; 464(7286):194-8. DOI: 10.1038/nature08916. View

Kuroda K, Reimann J, Gudde J, Hofer U . Generation of Transient Photocurrents in the Topological Surface State of Sb_{2}Te_{3} by Direct Optical Excitation with Midinfrared Pulses. Phys Rev Lett. 2016; 116(7):076801. DOI: 10.1103/PhysRevLett.116.076801. View

Iyer V, Chen Y, Xu X . Ultrafast Surface State Spin-Carrier Dynamics in the Topological Insulator Bi_{2}Te_{2}Se. Phys Rev Lett. 2018; 121(2):026807. DOI: 10.1103/PhysRevLett.121.026807. View

Dziom V, Shuvaev A, Pimenov A, Astakhov G, Ames C, Bendias K . Observation of the universal magnetoelectric effect in a 3D topological insulator. Nat Commun. 2017; 8:15197. PMC: 5440727. DOI: 10.1038/ncomms15197. View

Kane C, Mele E . Z2 topological order and the quantum spin Hall effect. Phys Rev Lett. 2005; 95(14):146802. DOI: 10.1103/PhysRevLett.95.146802. View

Wang Y, Hsieh D, Sie E, Steinberg H, Gardner D, Lee Y . Measurement of intrinsic dirac fermion cooling on the surface of the topological insulator Bi2Se3 using time-resolved and angle-resolved photoemission spectroscopy. Phys Rev Lett. 2012; 109(12):127401. DOI: 10.1103/PhysRevLett.109.127401. View

Qu D, Hor Y, Xiong J, Cava R, Ong N . Quantum oscillations and hall anomaly of surface states in the topological insulator Bi2Te3. Science. 2010; 329(5993):821-4. DOI: 10.1126/science.1189792. View

Hsieh D, Xia Y, Qian D, Wray L, Dil J, Meier F . A tunable topological insulator in the spin helical Dirac transport regime. Nature. 2009; 460(7259):1101-5. DOI: 10.1038/nature08234. View

10.

Yang X, Vaswani C, Sundahl C, Mootz M, Gagel P, Luo L . Terahertz-light quantum tuning of a metastable emergent phase hidden by superconductivity. Nat Mater. 2018; 17(7):586-591. DOI: 10.1038/s41563-018-0096-3. View

11.

Okada K, Takahashi Y, Mogi M, Yoshimi R, Tsukazaki A, Takahashi K . Terahertz spectroscopy on Faraday and Kerr rotations in a quantum anomalous Hall state. Nat Commun. 2016; 7:12245. PMC: 4961790. DOI: 10.1038/ncomms12245. View

12.

Giorgianni F, Chiadroni E, Rovere A, Cestelli-Guidi M, Perucchi A, Bellaveglia M . Strong nonlinear terahertz response induced by Dirac surface states in Bi2Se3 topological insulator. Nat Commun. 2016; 7:11421. PMC: 4853424. DOI: 10.1038/ncomms11421. View

13.

Luo L, Chatzakis I, Patz A, Wang J . Ultrafast terahertz probes of interacting dark excitons in chirality-specific semiconducting single-walled carbon nanotubes. Phys Rev Lett. 2015; 114(10):107402. DOI: 10.1103/PhysRevLett.114.107402. View

14.

Sobota J, Yang S, Analytis J, Chen Y, Fisher I, Kirchmann P . Ultrafast optical excitation of a persistent surface-state population in the topological insulator Bi2Se3. Phys Rev Lett. 2012; 108(11):117403. DOI: 10.1103/PhysRevLett.108.117403. View

15.

Bravyi S, Hastings M, Verstraete F . Lieb-Robinson bounds and the generation of correlations and topological quantum order. Phys Rev Lett. 2006; 97(5):050401. DOI: 10.1103/PhysRevLett.97.050401. View

16.

Hsieh D, Qian D, Wray L, Xia Y, Hor Y, Cava R . A topological Dirac insulator in a quantum spin Hall phase. Nature. 2008; 452(7190):970-4. DOI: 10.1038/nature06843. View

17.

Wu L, Salehi M, Koirala N, Moon J, Oh S, Armitage N . Quantized Faraday and Kerr rotation and axion electrodynamics of a 3D topological insulator. Science. 2016; 354(6316):1124-1127. DOI: 10.1126/science.aaf5541. View

18.

Koirala N, Brahlek M, Salehi M, Wu L, Dai J, Waugh J . Record Surface State Mobility and Quantum Hall Effect in Topological Insulator Thin Films via Interface Engineering. Nano Lett. 2015; 15(12):8245-9. DOI: 10.1021/acs.nanolett.5b03770. View

19.

Yang X, Luo L, Mootz M, Patz A, Budko S, Canfield P . Nonequilibrium Pair Breaking in Ba(Fe_{1-x}Co_{x})_{2}As_{2} Superconductors: Evidence for Formation of a Photoinduced Excitonic State. Phys Rev Lett. 2019; 121(26):267001. DOI: 10.1103/PhysRevLett.121.267001. View

20.

Aguilar R, Stier A, Liu W, Bilbro L, George D, Bansal N . Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3. Phys Rev Lett. 2012; 108(8):087403. DOI: 10.1103/PhysRevLett.108.087403. View