Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Magnetic Fields

Magnetic Fields

A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...

Magnetic Field Due to Two Straight Wires

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.

Force On A Current Loop In A Magnetic Field

Force On A Current Loop In A Magnetic Field

Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process, commutators...

Magnetic Damping

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...

Magnetic Force

Magnetic Force

In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
The magnetic force acting on a moving charge...

Ferromagnetism

Ferromagnetism

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...

You might also read

Related Articles

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

Sort by

Same author

Micromagnetic simulations of magnetization reversal in<i>L</i>1<sub>0</sub>FePt/FeCo exchange-bias bilayers with in-plane orthogonal anisotropy.

Journal of physics. Condensed matter : an Institute of Physics journal·2026

Same author

Investigation of the temperature phase diagram of the 2D semi-classical ferrimagneticJ1-J2model.

Journal of physics. Condensed matter : an Institute of Physics journal·2022

Same author

Investigation of the magnetic phase diagram of the 2D ferrimagnetic J <sub>1</sub>-J <sub>2</sub> model.

Journal of physics. Condensed matter : an Institute of Physics journal·2020

Same author

Stacking-Dependent Spin Interactions in Pd/Fe Bilayers on Re(0001).

Physical review letters·2020

Same author

A cavity optomechanical locking scheme based on the optical spring effect.

The Review of scientific instruments·2020

Same author

A radio-frequency spin-polarized scanning tunneling microscope.

The Review of scientific instruments·2020

Search research articles

Related Experiment Video

Updated: May 30, 2026

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Domain wall manipulation with a magnetic tip.

T Stapelfeldt¹, R Wieser, E Y Vedmedenko

¹Institute of Applied Physics and Microstructure Advanced Research Center, University of Hamburg, Jungiusstraße 11, D-20355 Hamburg, Germany.

Physical Review Letters

|July 30, 2011

Summary

This study introduces a novel method for controlling magnetic domain walls using spin-polarized currents from a magnetic tip. This technique enables precise manipulation of domain walls in magnetic nanostructures.

More Related Videos

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Published on: April 4, 2013

Scanning SQUID Study of Vortex Manipulation by Local Contact

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

Related Experiment Videos

Last Updated: May 30, 2026

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging

Published on: April 4, 2013

Scanning SQUID Study of Vortex Manipulation by Local Contact

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

Area of Science:

Condensed Matter Physics
Materials Science
Nanotechnology

Background:

Magnetic domain walls are crucial for magnetic memory and logic devices.
Controlling domain wall motion is essential for advanced spintronic applications.

Purpose of the Study:

To propose and theoretically investigate a method for local manipulation of magnetic domain walls.
To explore the use of spin-polarized currents from a scanning tunneling microscope tip for domain wall displacement.

Main Methods:

Theoretical modeling of domain wall dynamics.
Landau-Lifshitz-Gilbert (LLG) simulations.
Monte Carlo simulations.
Analysis of spin-polarized current-induced torque.

Main Results:

Demonstrated the feasibility of driving magnetic domain walls using spin-polarized current.
Investigated the manipulation of a 180° transverse domain wall in a magnetic nanostripe.
Analyzed the influence of tip-sample magnetization orientation on domain wall motion.

Conclusions:

Local manipulation of magnetic domain walls via spin-polarized current is theoretically viable.
This method offers a promising pathway for precise domain wall control in spintronic devices.