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Title: Gigantic Surface Lifetime of an Intrinsic Topological Insulator

Abstract

We report that the interaction between light and novel two-dimensional electronic states holds promise to realize new fundamental physics and optical devices. Here, we use pump-probe photoemission spectroscopy to study the optically excited Dirac surface states in the bulk-insulating topological insulator Bi 2Te 2Se and reveal optical properties that are in sharp contrast to those of bulk-metallic topological insulators. We observe a gigantic optical lifetime exceeding 4 μs (1 μs=10 $${-}$$6 s) for the surface states in Bi 2Te 2Se, whereas the lifetime in most topological insulators, such as Bi2Se3, has been limited to a few picoseconds (1 ps=10 $${-}$$12 s). Moreover, we discover a surface photovoltage, a shift of the chemical potential of the Dirac surface states, as large as 100 mV. Lastly, our results demonstrate a rare platform to study charge excitation and relaxation in energy and momentum space in a two-dimensional system.

Authors:
 [1];  [2];  [3];  [4];  [5];  [2];  [2];  [2];  [2];  [6];  [7];  [3];  [8];  [9]
  1. Princeton Univ., NJ (United States). Joseph Henry Lab., Dept. of Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Princeton Univ., NJ (United States). Joseph Henry Lab., Dept. of Physics
  3. Univ. of Tokyo (Japan). Inst. for Solid State Physics (ISSP)
  4. Princeton Univ., NJ (United States). Dept. of Chemistry; Peking Univ., Beijing (China). International Center for Quantum Materials
  5. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  6. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  7. Univ. of Maryland, College Park, MD (United States). Joint Quantum Inst. and Condensed Matter Theory Center, Dept. of Physics; Monash Univ., Melbourne, VIC (Australia). School of Physics
  8. Princeton Univ., NJ (United States). Dept. of Chemistry
  9. Princeton Univ., NJ (United States). Joseph Henry Lab., Dept. of Physics; Princeton Univ., NJ (United States). Princeton Center for Complex Materials
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF); Australian Research Council; Simons Foundation
OSTI Identifier:
1334115
Alternate Identifier(s):
OSTI ID: 1214746
Report Number(s):
LA-UR-15-26947
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC52-06NA25396; FG-02-05ER46200; AC03-76SF00098; FG02-07ER46352; SC0001911; AC02-05CH11231; GBMF4547; 26800165; DMR 1206513
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 115; Journal Issue: 11; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; Topological Insulators; pump probe; ARPES

Citation Formats

Neupane, Madhab, Xu, Su-Yang, Ishida, Yukiaki, Jia, Shuang, Fregoso, Benjamin M., Liu, Chang, Belopolski, Ilya, Bian, Guang, Alidoust, Nasser, Durakiewicz, Tomasz, Galitski, Victor, Shin, Shik, Cava, Robert J., and Hasan, M. Zahid. Gigantic Surface Lifetime of an Intrinsic Topological Insulator. United States: N. p., 2015. Web. doi:10.1103/PhysRevLett.115.116801.
Neupane, Madhab, Xu, Su-Yang, Ishida, Yukiaki, Jia, Shuang, Fregoso, Benjamin M., Liu, Chang, Belopolski, Ilya, Bian, Guang, Alidoust, Nasser, Durakiewicz, Tomasz, Galitski, Victor, Shin, Shik, Cava, Robert J., & Hasan, M. Zahid. Gigantic Surface Lifetime of an Intrinsic Topological Insulator. United States. doi:10.1103/PhysRevLett.115.116801.
Neupane, Madhab, Xu, Su-Yang, Ishida, Yukiaki, Jia, Shuang, Fregoso, Benjamin M., Liu, Chang, Belopolski, Ilya, Bian, Guang, Alidoust, Nasser, Durakiewicz, Tomasz, Galitski, Victor, Shin, Shik, Cava, Robert J., and Hasan, M. Zahid. Wed . "Gigantic Surface Lifetime of an Intrinsic Topological Insulator". United States. doi:10.1103/PhysRevLett.115.116801. https://www.osti.gov/servlets/purl/1334115.
@article{osti_1334115,
title = {Gigantic Surface Lifetime of an Intrinsic Topological Insulator},
author = {Neupane, Madhab and Xu, Su-Yang and Ishida, Yukiaki and Jia, Shuang and Fregoso, Benjamin M. and Liu, Chang and Belopolski, Ilya and Bian, Guang and Alidoust, Nasser and Durakiewicz, Tomasz and Galitski, Victor and Shin, Shik and Cava, Robert J. and Hasan, M. Zahid},
abstractNote = {We report that the interaction between light and novel two-dimensional electronic states holds promise to realize new fundamental physics and optical devices. Here, we use pump-probe photoemission spectroscopy to study the optically excited Dirac surface states in the bulk-insulating topological insulator Bi2Te2Se and reveal optical properties that are in sharp contrast to those of bulk-metallic topological insulators. We observe a gigantic optical lifetime exceeding 4 μs (1 μs=10${-}$6 s) for the surface states in Bi2Te2Se, whereas the lifetime in most topological insulators, such as Bi2Se3, has been limited to a few picoseconds (1 ps=10${-}$12 s). Moreover, we discover a surface photovoltage, a shift of the chemical potential of the Dirac surface states, as large as 100 mV. Lastly, our results demonstrate a rare platform to study charge excitation and relaxation in energy and momentum space in a two-dimensional system.},
doi = {10.1103/PhysRevLett.115.116801},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 11,
volume = 115,
place = {United States},
year = {2015},
month = {9}
}

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Cited by: 25 works
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Works referenced in this record:

The rise of graphene
journal, March 2007

  • Geim, A. K.; Novoselov, K. S.
  • Nature Materials, Vol. 6, Issue 3, p. 183-191
  • DOI: 10.1038/nmat1849

Three-Dimensional Topological Insulators
journal, March 2011


Colloquium: Topological insulators
journal, November 2010


Topological insulators and superconductors
journal, October 2011


A topological Dirac insulator in a quantum spin Hall phase
journal, April 2008

  • Hsieh, D.; Qian, D.; Wray, L.
  • Nature, Vol. 452, Issue 7190, p. 970-974
  • DOI: 10.1038/nature06843

Observation of a large-gap topological-insulator class with a single Dirac cone on the surface
journal, May 2009

  • Xia, Y.; Qian, D.; Hsieh, D.
  • Nature Physics, Vol. 5, Issue 6, p. 398-402
  • DOI: 10.1038/nphys1274

Observation of a three-dimensional topological Dirac semimetal phase in high-mobility Cd3As2
journal, May 2014

  • Neupane, Madhab; Xu, Su-Yang; Sankar, Raman
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4786

Spintronics and pseudospintronics in graphene and topological insulators
journal, April 2012

  • Pesin, Dmytro; MacDonald, Allan H.
  • Nature Materials, Vol. 11, Issue 5
  • DOI: 10.1038/nmat3305

Spin Hall Effect Transistor
journal, December 2010


Floquet topological insulator in semiconductor quantum wells
journal, March 2011

  • Lindner, Netanel H.; Refael, Gil; Galitski, Victor
  • Nature Physics, Vol. 7, Issue 6
  • DOI: 10.1038/nphys1926

Transport properties of nonequilibrium systems under the application of light: Photoinduced quantum Hall insulators without Landau levels
journal, December 2011


Photoinduced Transition between Conventional and Topological Insulators in Two-Dimensional Electronic Systems
journal, June 2010


Topological field theory of time-reversal invariant insulators
journal, November 2008

  • Qi, Xiao-Liang; Hughes, Taylor L.; Zhang, Shou-Cheng
  • Physical Review B, Vol. 78, Issue 19, Article No. 195424
  • DOI: 10.1103/PhysRevB.78.195424

Observation of Floquet-Bloch States on the Surface of a Topological Insulator
journal, October 2013

  • Wang, Y. H.; Steinberg, H.; Jarillo-Herrero, P.
  • Science, Vol. 342, Issue 6157, p. 453-457
  • DOI: 10.1126/science.1239834

Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi 2 Se 3
journal, March 2012


Ultrafast Surface Carrier Dynamics in the Topological Insulator Bi 2 Te 3
journal, June 2012

  • Hajlaoui, M.; Papalazarou, E.; Mauchain, J.
  • Nano Letters, Vol. 12, Issue 7
  • DOI: 10.1021/nl301035x

Ultrafast photodoping and effective Fermi-Dirac distribution of the Dirac particles in Bi 2 Se 3
journal, November 2012


Evidence of reduced surface electron-phonon scattering in the conduction band of Bi 2 Se 3 by nonequilibrium ARPES
journal, September 2013


Phase Separation and Bulk p-n Transition in Single Crystals of Bi 2 Te 2 Se Topological Insulator
journal, November 2012

  • Mi, Jian-Li; Bremholm, Martin; Bianchi, Marco
  • Advanced Materials, Vol. 25, Issue 6
  • DOI: 10.1002/adma.201203542

Tuning a Schottky barrier in a photoexcited topological insulator with transient Dirac cone electron-hole asymmetry
journal, January 2014

  • Hajlaoui, M.; Papalazarou, E.; Mauchain, J.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4003

Large bulk resistivity and surface quantum oscillations in the topological insulator Bi 2 Te 2 Se
journal, December 2010


Quantum oscillations in a topological insulator Bi2Te2Se with large bulk resistivity ()
journal, February 2012

  • Xiong, Jun; Petersen, A. C.; Qu, Dongxia
  • Physica E: Low-dimensional Systems and Nanostructures, Vol. 44, Issue 5
  • DOI: 10.1016/j.physe.2011.09.011

Topological surface states and Dirac point tuning in ternary topological insulators
journal, June 2012


Bi 2 Te 1.6 S 1.4 : A topological insulator in the tetradymite family
journal, May 2012


Oscillatory surface dichroism of the insulating topological insulator Bi 2 Te 2 Se
journal, October 2013


Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
journal, December 2014

  • Ishida, Y.; Togashi, T.; Yamamoto, K.
  • Review of Scientific Instruments, Vol. 85, Issue 12
  • DOI: 10.1063/1.4903788

Driven electronic states at the surface of a topological insulator
journal, October 2013


Surface Recombination on the Si(111) 2×1 Surface
journal, April 1989


Surface photovoltage phenomena: theory, experiment, and applications
journal, December 1999


Bulk Fermi surface coexistence with Dirac surface state in Bi 2 Se 3 : A comparison of photoemission and Shubnikov–de Haas measurements
journal, May 2010


Topological Kondo Insulators
journal, March 2010


Correlated Topological Insulators with Mixed Valence
journal, February 2013


Surface electronic structure of the topological Kondo-insulator candidate correlated electron system SmB6
journal, December 2013

  • Neupane, M.; Alidoust, N.; Xu, S-Y.
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms3991

Emergent photovoltage on SmB6 surface upon bulk-gap evolution revealed by pump-and-probe photoemission spectroscopy
journal, February 2015

  • Ishida, Y.; Otsu, T.; Shimada, T.
  • Scientific Reports, Vol. 5, Issue 1
  • DOI: 10.1038/srep08160

    Works referencing / citing this record:

    Spin Hall photoconductance in a three-dimensional topological insulator at room temperature
    journal, January 2018