DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Absence of strong localization at low conductivity in the topological surface state of low-disorder Sb 2 Te 3

Abstract

We present low-temperature transport measurements of a gate-tunable thin-film topological insulator system that features high mobility and low carrier density. Upon gate tuning to a regime around the charge neutrality point, we infer an absence of strong localization even at conductivities well below e2/h, where two-dimensional electron systems should conventionally scale to an insulating state. Oddly, in this regime the localization coherence peak lacks conventional temperature broadening, though its tails do change dramatically with temperature. As a result, using a model with electron-impurity scattering, we extract values for the disorder potential and the hybridization of the top and bottom surface states.

Authors:
 [1];  [2];  [2];  [3];  [4];  [3];  [5];  [1]
  1. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. National Univ. of Singapore (Singapore)
  3. Rutgers Univ., Piscataway, NJ (United States)
  4. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Science Philanthropy Alliance, Palo Alto, CA (United States)
  5. National Univ. of Singapore (Singapore); Yale-NUS College (Singapore)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532405
Alternate Identifier(s):
OSTI ID: 1510361
Grant/Contract Number:  
AC02-76SF00515; GBMF3429; GBMF4418; ECCS-1542152; EFMA-1542798; R-607-000-094-133; MOE2017-T2-1-130
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 20; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Rosen, Ilan T., Yudhistira, Indra, Sharma, Girish, Salehi, Maryam, Kastner, M. A., Oh, Seongshik, Adam, Shaffique, and Goldhaber-Gordon, David. Absence of strong localization at low conductivity in the topological surface state of low-disorder Sb2Te3. United States: N. p., 2019. Web. doi:10.1103/physrevb.99.201101.
Rosen, Ilan T., Yudhistira, Indra, Sharma, Girish, Salehi, Maryam, Kastner, M. A., Oh, Seongshik, Adam, Shaffique, & Goldhaber-Gordon, David. Absence of strong localization at low conductivity in the topological surface state of low-disorder Sb2Te3. United States. https://doi.org/10.1103/physrevb.99.201101
Rosen, Ilan T., Yudhistira, Indra, Sharma, Girish, Salehi, Maryam, Kastner, M. A., Oh, Seongshik, Adam, Shaffique, and Goldhaber-Gordon, David. Thu . "Absence of strong localization at low conductivity in the topological surface state of low-disorder Sb2Te3". United States. https://doi.org/10.1103/physrevb.99.201101. https://www.osti.gov/servlets/purl/1532405.
@article{osti_1532405,
title = {Absence of strong localization at low conductivity in the topological surface state of low-disorder Sb2Te3},
author = {Rosen, Ilan T. and Yudhistira, Indra and Sharma, Girish and Salehi, Maryam and Kastner, M. A. and Oh, Seongshik and Adam, Shaffique and Goldhaber-Gordon, David},
abstractNote = {We present low-temperature transport measurements of a gate-tunable thin-film topological insulator system that features high mobility and low carrier density. Upon gate tuning to a regime around the charge neutrality point, we infer an absence of strong localization even at conductivities well below e2/h, where two-dimensional electron systems should conventionally scale to an insulating state. Oddly, in this regime the localization coherence peak lacks conventional temperature broadening, though its tails do change dramatically with temperature. As a result, using a model with electron-impurity scattering, we extract values for the disorder potential and the hybridization of the top and bottom surface states.},
doi = {10.1103/physrevb.99.201101},
journal = {Physical Review B},
number = 20,
volume = 99,
place = {United States},
year = {Thu May 02 00:00:00 EDT 2019},
month = {Thu May 02 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Weak localization effects as evidence for bulk quantization in Bi 2 Se 3 thin films
journal, September 2013


Effects of bulk charged impurities on the bulk and surface transport in three-dimensional topological insulators
journal, September 2013

  • Skinner, B.; Chen, T.; Shklovskii, B. I.
  • Journal of Experimental and Theoretical Physics, Vol. 117, Issue 3
  • DOI: 10.1134/S1063776113110150

Landau Quantization and the Thickness Limit of Topological Insulator Thin Films of Sb 2 Te 3
journal, January 2012


Disorder-Induced Magnetoresistance in a Two-Dimensional Electron System
journal, July 2014


Charge transport and inhomogeneity near the minimum conductivity point in graphene
journal, February 2008


The Metalliclike Conductivity of a Two-Dimensional Hole System
journal, February 1998


Topological Delocalization of Two-Dimensional Massless Dirac Fermions
journal, October 2007


Record Surface State Mobility and Quantum Hall Effect in Topological Insulator Thin Films via Interface Engineering
journal, November 2015


Observation of quantum-tunnelling-modulated spin texture in ultrathin topological insulator Bi2Se3 films
journal, May 2014

  • Neupane, Madhab; Richardella, Anthony; Sánchez-Barriga, Jaime
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4841

Evidence for electron-electron interaction in topological insulator thin films
journal, June 2011


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

Defect Scattering in Graphene
journal, June 2009


Spin-Orbit Interaction and Magnetoresistance in the Two Dimensional Random System
journal, February 1980

  • Hikami, S.; Larkin, A. I.; Nagaoka, Y.
  • Progress of Theoretical Physics, Vol. 63, Issue 2
  • DOI: 10.1143/PTP.63.707

Direct observation of a widely tunable bandgap in bilayer graphene
journal, June 2009

  • Zhang, Yuanbo; Tang, Tsung-Ta; Girit, Caglar
  • Nature, Vol. 459, Issue 7248
  • DOI: 10.1038/nature08105

Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface
journal, May 2009

  • Zhang, Haijun; Liu, Chao-Xing; Qi, Xiao-Liang
  • Nature Physics, Vol. 5, Issue 6, p. 438-442
  • DOI: 10.1038/nphys1270

Finite-Temperature Conductivity and Magnetoconductivity of Topological Insulators
journal, April 2014


Topological Insulators in Three Dimensions
journal, March 2007


Gate-Voltage Control of Chemical Potential and Weak Antilocalization in Bi 2 Se 3
journal, October 2010


Insulating Behavior at the Neutrality Point in Single-Layer Graphene
journal, May 2013


Observation of the Quantum Anomalous Hall Insulator to Anderson Insulator Quantum Phase Transition and its Scaling Behavior
journal, September 2016


Disordered electronic systems
journal, April 1985


Thickness-dependent bulk properties and weak antilocalization effect in topological insulator Bi 2 Se 3
journal, August 2011


Weak localization and weak anti-localization in topological insulators
conference, August 2014

  • Lu, Hai-Zhou; Shen, Shun-Qing
  • SPIE NanoScience + Engineering, SPIE Proceedings
  • DOI: 10.1117/12.2063426

Mobility engineering and a metal–insulator transition in monolayer MoS2
journal, June 2013

  • Radisavljevic, Branimir; Kis, Andras
  • Nature Materials, Vol. 12, Issue 9
  • DOI: 10.1038/nmat3687

Band structure engineering in (Bi1−xSbx)2Te3 ternary topological insulators
journal, September 2011

  • Zhang, Jinsong; Chang, Cui-Zu; Zhang, Zuocheng
  • Nature Communications, Vol. 2, Issue 1
  • DOI: 10.1038/ncomms1588

Crossover of the three-dimensional topological insulator Bi2Se3 to the two-dimensional limit
journal, June 2010

  • Zhang, Yi; He, Ke; Chang, Cui-Zu
  • Nature Physics, Vol. 6, Issue 8
  • DOI: 10.1038/nphys1689

Self-organized charge puddles in a three-dimensional topological material
journal, June 2016


Competing Weak Localization and Weak Antilocalization in Ultrathin Topological Insulators
journal, December 2012

  • Lang, Murong; He, Liang; Kou, Xufeng
  • Nano Letters, Vol. 13, Issue 1
  • DOI: 10.1021/nl303424n

Electronic Transport in Dual-Gated Bilayer Graphene at Large Displacement Fields
journal, October 2010


Signatures of long-range-correlated disorder in the magnetotransport of ultrathin topological insulators
journal, December 2018


Observation of Anderson Localization in Ultrathin Films of Three-Dimensional Topological Insulators
journal, May 2015


Scaling of an anomalous metal-insulator transition in a two-dimensional system in silicon at B =0
journal, March 1995

  • Kravchenko, S. V.; Mason, Whitney E.; Bowker, G. E.
  • Physical Review B, Vol. 51, Issue 11
  • DOI: 10.1103/PhysRevB.51.7038

Equivalence of effective medium and random resistor network models for disorder-induced unsaturating linear magnetoresistance
journal, December 2017


Metal-Insulator Transition at B = 0 in a Dilute Two Dimensional GaAs-AlGaAs Hole Gas
journal, February 1998


Conductivity corrections for topological insulators with spin-orbit impurities: Hikami-Larkin-Nagaoka formula revisited
journal, December 2015


Enhancement of carrier lifetime by spin–orbit coupling in a topological insulator of an Sb 2 Te 3 thin film
journal, January 2016

  • Choi, Hyejin; Jung, Seonghoon; Kim, Tae Hyeon
  • Nanoscale, Vol. 8, Issue 45
  • DOI: 10.1039/C6NR05852C

Massive Dirac fermions and spin physics in an ultrathin film of topological insulator
journal, March 2010


Anomalous finite size effects on surface states in the topological insulator Bi 2 Se 3
journal, November 2009