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

π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.8K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.8K
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

2.0K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity....
2.0K
Valence Bond Theory02:42

Valence Bond Theory

11.4K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.4K
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

1.8K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.8K
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds01:14

π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds

2.0K
In aromatic compounds, such as benzene, the circulation of (4n + 2) π-electrons sets up a diamagnetic or diatropic ring current around the perimeter of the molecule. This current induces a magnetic field that opposes the external field inside the ring and reinforces it on the outside. The protons in benzene are deshielded and exhibit high chemical shifts in the range 6.5–8.5 ppm. The shielding effect at the center of the ring is evident in complex aromatic molecules, such as...
2.0K
The de Broglie Wavelength02:32

The de Broglie Wavelength

33.9K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
33.9K

You might also read

Related Articles

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

Sort by
Same author

An IHC-derived TLS-CD8-macrophage immune niche score predicts major pathological response to neoadjuvant chemoimmunotherapy in resectable NSCLC.

Frontiers in immunology·2026
Same author

Spatial Differentiation and Driving Mechanisms of Nekton Community Diversity in Eastern Guangdong Coastal Waters, Northern South China Sea.

Biology·2026
Same author

Elasticity-gated thermal plasticity via superheating-mediated nucleation and growth in polymer networks.

Nature communications·2026
Same author

Evaluation and Selection of Stable Reference Genes for qRT-PCR Analysis in Different Tissues of <i>Mugilogobius chulae</i> Under Pollutant Exposure.

Animals : an open access journal from MDPI·2026
Same author

Transcriptomic Profiling Combined with Machine Learning and Mendelian Randomization Identifies Diagnostic Biomarkers and Immune Infiltration Patterns in Diabetic Kidney Disease.

Molecules (Basel, Switzerland)·2026
Same author

Spectroscopic evidence for a first-order transition to a possible orbital Fulde-Ferrell-Larkin-Ovchinnikov state.

Nature communications·2026
Same journal

Unlocking the capacity of Mn-based Prussian blue cathodes in capacitive deionization.

Nature communications·2026
Same journal

Scaling biodiversity-stability relationships from populations to meta-communities across trophic levels.

Nature communications·2026
Same journal

Thermodynamically programmed one-pot CRISPR platform for point-of-care SNP genotyping.

Nature communications·2026
Same journal

Engineering all-organic electrocatalysts with asymmetric dual-active sites for uncommon oxygen-evolving pathway.

Nature communications·2026
Same journal

Rapid GC content evolution in rice through GC-biased gene conversion and selection for translation efficiency.

Nature communications·2026
Same journal

Declines in organic matter persistence with increased soil carbon.

Nature communications·2026
See all related articles

Related Experiment Video

Updated: Feb 26, 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

10.5K

Enhanced electron dephasing in three-dimensional topological insulators.

Jian Liao1, Yunbo Ou2, Haiwen Liu3

  • 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

Nature Communications
|July 12, 2017
PubMed
Summary
This summary is machine-generated.

Researchers studied electron dephasing in three-dimensional topological insulators (TIs) using weak antilocalization. Dephasing rates changed from linear to sublinear temperature dependence as transport shifted from bulk to surface dominance, revealing new insights into TI electron dynamics.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.4K
Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization
07:50

Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization

Published on: July 17, 2015

11.7K

Related Experiment Videos

Last Updated: Feb 26, 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

10.5K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.4K
Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization
07:50

Electron Channeling Contrast Imaging for Rapid III-V Heteroepitaxial Characterization

Published on: July 17, 2015

11.7K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Information Science

Background:

  • Electron dephasing is critical for understanding electronic ground states and quantum coherence.
  • The primary dephasing mechanisms in three-dimensional topological insulators (TIs) are not well understood, unlike in conventional metals and semiconductors.

Purpose of the Study:

  • To investigate and quantify electron dephasing rates in three-dimensional topological insulators (TIs).
  • To elucidate the dominant dephasing mechanisms in TIs by tuning transport properties.

Main Methods:

  • Utilized the weak antilocalization effect to measure dephasing rates.
  • Employed highly tunable (Bi,Sb)2Te3 thin films.
  • Varied experimental conditions to transition from bulk-conducting to surface-dominant transport regimes.

Main Results:

  • Observed a transition in dephasing rate's temperature dependence from linear to sublinear power-law.
  • The linear dependence in the bulk regime aligns with Nyquist electron-electron interactions.
  • The sublinear dependence in the surface-dominant regime indicates enhanced dephasing at low temperatures.

Conclusions:

  • The observed dephasing behavior in TIs is linked to the interplay between surface states and bulk charge puddles.
  • This study provides crucial insights into electron dephasing mechanisms in three-dimensional topological insulators.
  • Findings are relevant for advancing quantum coherence applications in topological materials.