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

Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

4.9K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
4.9K
Ferromagnetism01:31

Ferromagnetism

2.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.4K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

457
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
457
Induced Electric Dipoles01:28

Induced Electric Dipoles

4.3K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
4.3K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.1K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
1.1K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.1K
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,...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Adaptive graph learning of microbial phylogeny enables accurate and interpretable microbiome-based host phenotype prediction.

Applied and environmental microbiology·2026
Same author

Cognitive Versus Software-based Fusion Targeted Biopsy for the Diagnosis of Clinically Significant Prostate Cancer: A Multicenter, Randomized, Noninferiority Trial (IMAGINATION).

European urology·2026
Same author

Origin of crack propagation in lithium cobalt oxide positive electrode for lithium-ion batteries.

Nature communications·2026
Same author

Fuscan: a robust DNA fusion caller for targeted sequencing data in cancer diagnostics.

Bioinformatics advances·2026
Same author

Association between systemic immune-inflammation index and postoperative optical quality in the early recovery phase after cataract surgery: a retrospective study.

Frontiers in medicine·2026
Same author

Vertically Stacked Indium Gallium Zinc Oxide-Based Three-Dimensional Integrated Circuits.

ACS nano·2026

Related Experiment Video

Updated: Aug 17, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

8.9K

Sliding induced multiple polarization states in two-dimensional ferroelectrics.

Peng Meng1,2, Yaze Wu3, Renji Bian1

  • 1School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China.

Nature Communications
|December 12, 2022
PubMed
Summary

Sliding atomic layers in van der Waals structures create sliding ferroelectricity. This study shows layer number controls this effect in molybdenum disulfide (MoS2), enabling new ferroelectric device designs.

More Related Videos

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

8.2K
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

10.0K

Related Experiment Videos

Last Updated: Aug 17, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

8.9K
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

8.2K
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

10.0K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Nanotechnology

Background:

  • Ferroelectricity typically involves ion displacement for switching polarization.
  • Sliding ferroelectricity, driven by interfacial charge transfer in van der Waals structures, offers a distinct switching mechanism.
  • Controlling ferroelectric properties in layered materials is crucial for advanced electronic devices.

Purpose of the Study:

  • To investigate the influence of layer number on sliding ferroelectricity in 3R MoS2.
  • To explore anomalous intermediate polarization states in multilayer 3R MoS2.
  • To develop a generalized model for ferroelectric switching in multilayer 3R MoS2.

Main Methods:

  • Fabrication of 3R MoS2 field-effect transistors with varying thicknesses.
  • Electrical characterization of dual-gate field-effect transistors.
  • Ab initio density functional theory calculations.

Main Results:

  • Anomalous intermediate polarization states were observed in multilayer (more than bilayer) 3R MoS2.
  • Layer dependence was identified as a key factor in controlling sliding ferroelectricity.
  • A generalized model successfully explained ferroelectric switching and intermediate states.

Conclusions:

  • Layer number and interlayer dipole coupling critically influence sliding ferroelectricity in 3R MoS2.
  • The findings present a new strategy for designing novel sliding ferroelectric devices.
  • This research expands the understanding of ferroelectric phenomena in layered materials.