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

Ferromagnetism01:31

Ferromagnetism

3.2K
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...
3.2K
Theory of Metallic Conduction01:17

Theory of Metallic Conduction

1.8K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
1.8K
Types Of Superconductors01:28

Types Of Superconductors

1.7K
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
1.7K
Magnetic Field due to Moving Charges01:23

Magnetic Field due to Moving Charges

11.8K
A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
11.8K
Electric Field Inside a Conductor01:20

Electric Field Inside a Conductor

7.5K
When a conductor is placed in an external electric field, the free charges in the conductor redistribute and very quickly reach electrostatic equilibrium. The resulting charge distribution and its electric field have many interesting properties, which can be investigated with the help of Gauss's law.
Suppose a piece of metal is placed near a positive charge. The free electrons in the metal are attracted to the external positive charge and migrate freely toward that region. This region then...
7.5K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

678
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
678

You might also read

Related Articles

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

Sort by
Same author

An Oxygen-Defect-Induced Unsaturated Coordination Strategy Boosts High-Selective PET Upcycling via Suppressing Oxygen Evolution.

Angewandte Chemie (International ed. in English)·2026
Same author

Design of Skyrmion Bags with Tunable Topology in Symmetry-Broken 2D Lattices.

ACS nano·2026
Same author

An Efficient Photocatalytic Process for Hydrogen Production and Acetic Acid Synthesis on FAPbBr<sub>3</sub> Perovskite.

Angewandte Chemie (International ed. in English)·2026
Same author

Giant thermal Hall effect in topological magnon insulator Cr<sub>3</sub>Se<sub>4</sub> monolayer.

Materials horizons·2026
Same author

Orbital Multiferroicity in Two-Dimensional Triangular Lattice.

Physical review letters·2026
Same author

Magnetically Switchable Ferroelastic Phase Transition in Two-Dimensional Multiferroics.

Small (Weinheim an der Bergstrasse, Germany)·2026

Related Experiment Video

Updated: Feb 18, 2026

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

Ferroelectrics Drive Topological Magnon Transitions and Valley Transport.

Yingxi Bai1, Bo Yuan1, Zhiqi Chen1

  • 1Shandong University, School of Physics, State Key Laboratory of Crystal Materials, Jinan 250100, China.

Physical Review Letters
|February 16, 2026
PubMed
Summary

Researchers developed a new ferroelectric platform for controlling topological magnons, enabling reversible switching between three topological phases. This breakthrough paves the way for advanced spintronic devices with low-dissipation spin transport.

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

8.6K
Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

12.1K

Related Experiment Videos

Last Updated: Feb 18, 2026

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
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

8.6K
Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

12.1K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Mechanics

Background:

  • Topological magnons enable low-dissipation spin transport.
  • Controlling topological states of magnons nonvolatily is challenging.

Purpose of the Study:

  • To propose a ferroelectrically tunable magnonic platform for controlling topological magnon states.
  • To identify a material platform supporting electric-field-driven topological switching.

Main Methods:

  • Heisenberg-Dzyaloshinskii-Moriya model and symmetry analysis.
  • First-principles calculations.
  • Investigation of valley-dependent magnonic transport.

Main Results:

  • Demonstrated reversible switching among three topological phases (second-order topological magnon insulator, topological magnon insulator, normal magnon insulator).
  • Identified Ti3I8 monolayer as a material platform for electric-field-driven topological switching and reversal of spontaneous magnon valley polarization.
  • Observed electrically controllable valley-dependent magnonic transport (valley Hall and valley Nernst effects).

Conclusions:

  • Established topological magnons as a link between ferroelectricity and magnon cornertronic/valleytronic responses.
  • The proposed platform offers a pathway for novel electronic devices based on tunable topological magnons.