Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

TGMS-UNet: A dual-branch segmentation network for ultrasound endometrium based on sequence guidance and multi-scale feature correction.

Digital health·2026
Same author

YTHDF2-regulated hsa_circ_0005882 functions as a sponge for miR-654-3p to suppress nasopharyngeal carcinoma proliferation.

Neoplasma·2026
Same author

Ultra-Narrow Pure-Green MR-TADF Emitter with an FWHM of 12 nm Enables Superior-Performance Top-Emitting OLEDs with EQE Approaching 60%, Power Efficiency Over 300 lm W<sup>-1</sup>, and CIE Coordinates of (0.14, 0.79).

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Shared neurogenetic substrates of nonplanning impulsivity and procrastination.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Engineering the tumor immune landscape: Translating non-invasive physical stimulation into tumor-associated macrophage-targeted cancer immunotherapy.

Bioengineering & translational medicine·2026
Same author

The crosstalk between RNA m6A modification and protein lactylation: emerging insights into tumor progression.

Oncogene·2026

Related Experiment Video

Updated: Mar 24, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.6K

Stable topological insulators achieved using high energy electron beams.

Lukas Zhao1, Marcin Konczykowski2, Haiming Deng1

  • 1Department of Physics, The City College of New York, CUNY, New York, New York 10031, USA.

Nature Communications
|March 11, 2016
PubMed
Summary

Swift electron beam irradiation compensates defects in topological insulators, enabling access to their unique surface states. This method tunes conductivity and reveals two quantum channels for intrinsic transport, regardless of material thickness.

More Related Videos

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
10:36

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials

Published on: January 21, 2016

11.5K
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.7K

Related Experiment Videos

Last Updated: Mar 24, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.6K
Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
10:36

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials

Published on: January 21, 2016

11.5K
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.7K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Phenomena

Background:

  • Topological insulators possess unique Dirac surface states, theoretically immune to disorder.
  • Bulk defects in topological insulators often impede access to these surface states by shifting the Fermi level.

Purpose of the Study:

  • To investigate a method for compensating bulk defects in topological insulators.
  • To restore access to the topological surface states for quantum transport studies.
  • To tune the electronic properties of topological insulators.

Main Methods:

  • Irradiation of topological insulators (Bi2Te3 and Bi2Se3) with swift electron beams (∼2.5 MeV).
  • Systematic control of electron beam fluence to modify bulk conductivity.
  • Measurement of quantum transport properties at the charge neutrality point (CNP).

Main Results:

  • Electron beam irradiation effectively compensates bulk defects, shifting the Fermi level into the bulk band gap.
  • Bulk conductivity was tuned from p-type to n-type, crossing the Dirac point, while preserving Dirac dispersion.
  • The CNP conductance exhibited 2D character with approximately ten conductance quanta.
  • Two quantum channels, corresponding to the two topological surfaces, were identified.

Conclusions:

  • Swift electron beam irradiation is a viable method to achieve the charge neutrality point in topological insulators.
  • The intrinsic quantum transport of topological surface states is accessible even with bulk defects.
  • This technique allows tuning of transport properties and probing the fundamental nature of topological surface states.