skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quantum-Hall to Insulator Transition in Ultra-Low-Carrier-Density Topological Insulator Films and a Hidden Phase of the Zeroth Landau Level

Journal Article · · Advanced Materials

A key feature of the topological surface state under a magnetic field is the presence of the zeroth Landau level at the zero energy. Nonetheless, it is challenging to probe the zeroth Landau level due to large electron-hole puddles smearing its energy landscape. Furthermore, by developing ultra-low-carrier density topological insulator Sb2Te3 films, an extreme quantum limit of the topological surface state is reached and a hidden phase at the zeroth Landau level is uncovered. First, an unexpected quantum-Hall-to-insulator-transition near the zeroth Landau level is discovered. Then, through a detailed scaling analysis, it is found that this quantum-Hall-to-insulator-transition belongs to a new universality class, implying that the insulating phase discovered here has a fundamentally different origin from those in nontopological systems.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; AC02−98CH10886; AC02‐76SF00515
OSTI ID:
1566877
Alternate ID(s):
OSTI ID: 1530473
Report Number(s):
BNL-212137-2019-JAAM
Journal Information:
Advanced Materials, Vol. 31, Issue 36; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (49)

Current scaling in the integer quantum Hall effect journal November 1994
Quantum Hall liquid-to-insulator transition in In 1 x Ga x As/InPt heterostructures journal June 1997
Optical Properties of Titanium-Doped Sb2Te3 Single Crystals journal October 1995
Integer Quantum Hall Effect of Interacting Electrons: Dynamical Scaling and Critical Conductivity journal June 1999
Landau Quantization and the Thickness Limit of Topological Insulator Thin Films of Sb 2 Te 3 journal January 2012
Quantum critical behaviour of the plateau-insulator transition in the quantum Hall regime journal November 2006
Quantized Faraday and Kerr rotation and axion electrodynamics of a 3D topological insulator journal December 2016
Influence of Ti doping on galvanomagnetic properties and valence band energy spectrum of Sb 2- x Ti x Te 3 single crystals journal January 1999
Transport coefficients of titanium-doped Sb2Te3 single crystals journal April 2005
Chiral Majorana fermion modes in a quantum anomalous Hall insulator–superconductor structure journal July 2017
Scaling in Plateau-to-Plateau Transition: A Direct Connection of Quantum Hall Systems with the Anderson Localization Model journal May 2009
Metal-to-insulator switching in quantum anomalous Hall states journal October 2015
A magnetic heterostructure of topological insulators as a candidate for an axion insulator journal February 2017
Solution to the Hole-Doping Problem and Tunable Quantum Hall Effect in Bi 2 Se 3 Thin Films journal January 2018
Probing the Plateau-Insulator Quantum Phase Transition in the Quantum Hall Regime journal February 2000
Quantum Hall Superfluids in Topological Insulator Thin Films journal December 2011
Quantum Hall effect on top and bottom surface states of topological insulator (Bi1−xSbx)2Te3 films journal April 2015
Observation of topological surface state quantum Hall effect in an intrinsic three-dimensional topological insulator journal November 2014
Experimental evidence for a two-dimensional quantized Hall insulator journal October 1998
Scaling of the quantum Hall plateau-plateau transition in graphene journal December 2009
Universal Conductivity at the Quantum Hall Liquid to Insulator Transition journal May 1995
Universal Singularities in the Integral Quantum Hall Effect journal September 1988
Landau Quantization of Topological Surface States in Bi 2 Se 3 journal August 2010
Model Hamiltonian for topological insulators journal July 2010
Colloquium: Topological insulators journal November 2010
Momentum-resolved Landau-level spectroscopy of Dirac surface state in Bi 2 Se 3 journal August 2010
Record Surface State Mobility and Quantum Hall Effect in Topological Insulator Thin Films via Interface Engineering journal November 2015
Topological Insulator Materials journal October 2013
Large bulk resistivity and surface quantum oscillations in the topological insulator Bi 2 Te 2 Se journal December 2010
Observation of the Quantum Anomalous Hall Insulator to Anderson Insulator Quantum Phase Transition and its Scaling Behavior journal September 2016
Scaling theory of the integer quantum Hall effect journal April 1995
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator journal March 2008
Band structure engineering in (Bi1−xSbx)2Te3 ternary topological insulators journal September 2011
Effects of Electron-Electron Interactions on the Integer Quantum Hall Transitions journal May 1996
Two-dimensional surface state in the quantum limit of a topological insulator journal November 2010
Quantum transport of two-species Dirac fermions in dual-gated three-dimensional topological insulators journal May 2016
Global phase diagram in the quantum Hall effect journal July 1992
Observation of Zeeman effect in topological surface state with distinct material dependence journal February 2016
Finite-Size and Composition-Driven Topological Phase Transition in (Bi 1– x In x ) 2 Se 3 Thin Films journal August 2016
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator journal January 2009
Superconducting proximity effect and Majorana fermions at the surface of a topological insulator text January 2007
Band structure engineering in (Bi1-xSbx)2Te3 ternary topological insulators text January 2011
Topological Insulator Materials text January 2013
Quantum Hall Effect on Top and Bottom Surface States of Topological Insulator (Bi1-xSbx)2Te3 Films text January 2014
Quantum transport of two-species Dirac fermions in dual-gated three-dimensional topological insulators text January 2015
Observation of the quantum-anomalous-Hall insulator to Anderson insulator quantum phase transition and its scaling behavior text January 2016
Solution to the hole-doping problem and tunable quantum Hall effect in Bi$_{2}$Se$_{3}$ thin films text January 2018
Probing the plateau-insulator quantum phase transition in the quantum Hall regime text January 1998
Spin-transfer torque and magnetoresistance in superconducting spin valves journal June 2009

Cited By (4)

The Material Efforts for Quantized Hall Devices Based on Topological Insulators journal December 2019
Synthesis and resistivity of topological metal MoP nanostructures journal January 2020
Pb-doped p-type Bi$_2$Se$_3$ thin films via interfacial engineering text January 2019
Scaling and Diffusion of Dirac Composite Fermions text January 2019

Figures / Tables (5)