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

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...

Atomic Nuclei: Magnetic Resonance

Atomic Nuclei: Magnetic Resonance

The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...

Paramagnetism

Paramagnetism

Paramagnets are materials with unpaired electrons that possess a finite magnetic moment. In the absence of a magnetic field, these moments are randomly oriented, and thus the net moment is zero. Under an external field, a torque acting on the moments tends to align them along the field's direction. However, the random thermal motion of electrons produces a torque opposite to the external field and tries to disorient the moments. These two competing effects align only a few moments along the...

Atomic Nuclei: Nuclear Relaxation Processes

Atomic Nuclei: Nuclear Relaxation Processes

In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis, the precessing magnetic moments are randomly oriented around the z-axis. This...

Diamagnetism

Diamagnetism

Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.

Magnetic Field due to Moving Charges

Magnetic Field due to Moving Charges

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...

You might also read

Related Articles

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

Sort by

Same author

Effect of myocardial bridging on the fat attenuation index of proximal coronary arteries: a dual-centre study in a plaque-free population.

Clinical radiology·2026

Same author

[Aggressive NK-cell leukemia with CD5(+)CD10(-) monoclonal B cell lymphocytosis and hemophagocytic lymphohistiocytosis: a case report and literature review].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2026

Same author

Hierarchical strengthening and toughening design of superalloy joints <i>via</i> a chemically complex intermetallic alloy-modified diffusion bonding strategy.

Materials horizons·2026

Same author

Accuracy evaluation of American College of Radiology Bone Reporting and Data System (ACR Bone-RADS) for extremity bone Tumours: a study with 16 observers using World Health Organization (WHO) classification.

Clinical radiology·2025

Same author

Savolitinib plus osimertinib in epidermal growth factor receptor (EGFR)-mutated advanced non-small cell lung cancer with MET overexpression and/or amplification following disease progression on osimertinib: primary results from the phase II SAVANNAH study.

Annals of oncology : official journal of the European Society for Medical Oncology·2025

Same author

CT and MRI findings of intraorbital wooden foreign bodies.

Clinical radiology·2025

Search research articles

Related Experiment Video

Updated: Jul 15, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Electrically assisted magnetic recording in multiferroic nanostructures.

F Zavaliche¹, T Zhao, H Zheng

¹Department of Materials Science and Engineering, University of California Berkeley, Berkeley, California 94720, USA. florin.zavaliche@seagate.com

|May 15, 2007

Summary

We achieved electric-field control of magnetization reversal at room temperature in a novel nanostructure. This electric field control shows promise for advanced magnetic recording technologies.

More Related Videos

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques

Published on: July 2, 2018

Related Experiment Videos

Last Updated: Jul 15, 2026

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques

Published on: July 2, 2018

Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Multiferroic materials offer potential for novel electronic devices by coupling magnetic and electric properties.
Controlling magnetic states with electric fields is a key goal for energy-efficient data storage.

Purpose of the Study:

To demonstrate room-temperature electric-field control of magnetization reversal.
To investigate the use of electric fields for magnetic recording in multiferroic systems.

Main Methods:

Fabrication of epitaxial nanostructures with ferrimagnetic nanopillars in a ferroelectric matrix.
Application of a weak magnetic field combined with a switching electric field.

Main Results:

Successful room-temperature control of magnetization reversal using an electric field.
Selective switching of nanopillars based on their magnetic configuration was achieved.

Conclusions:

Electric field control of magnetization is feasible at room temperature in these nanostructures.
This approach can be utilized to assist magnetic recording in multiferroic systems with high perpendicular magnetic anisotropy.