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

Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

3.2K
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,...
3.2K
Electro-mechanical Systems01:19

Electro-mechanical Systems

939
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
939
Multimachine Stability01:25

Multimachine Stability

151
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
151
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

282
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
282
Motional Emf01:22

Motional Emf

3.2K
Magnetic flux depends on three factors: the strength of the magnetic field, the area through which the field lines pass, and the field's orientation with respect to the surface area. If any of these quantities vary, a corresponding variation in magnetic flux occurs. If the area through which the magnetic field lines are passing changes, then the magnetic flux also changes. This change in the area can be of two types: the flux through the rectangular loop increases as it moves into the...
3.2K
Generator Voltage Control01:21

Generator Voltage Control

147
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
147

You might also read

Related Articles

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

Sort by
Same author

Universal Base-Catalyzed Aza-Michael Addition: A General Platform for Transforming Polyurethanes into High-Performance Injectable Thermogels.

Journal of the American Chemical Society·2026
Same author

Twin-Boundary Engineering in FeTe<sub>1-<i>x</i></sub>Se<sub><i>x</i></sub> Superconductor.

ACS nano·2026
Same author

Acylhydrazone-Linked Covalent Organic Frameworks.

Journal of the American Chemical Society·2026
Same author

Nonreciprocal electrical transport in emerging noncentrosymmetric systems: from hidden symmetry to functional devices.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same author

Energy-efficient field-free switching by orbital torque and spin-reorientation.

Nature communications·2026
Same author

Designing MOF-Thermogel Nanocomposites for Differential Multidrug Release in Combination Cancer Therapy.

ACS applied nano materials·2026
Same journal

Formation of Bimetallic Nanoparticles via Exsolution Using a Reducible Metal Oxide Capping Layer.

ACS nano·2026
Same journal

Cold-Driven Thermoelectric Patch for Postoperative Tumor Control.

ACS nano·2026
Same journal

Chemically Fueled Interfacial Supramolecular Polymerization.

ACS nano·2026
Same journal

Tactile Neuromorphic Ion-Gated Vertical Transistor Displays Enabling Dual-Output Reservoir Computing.

ACS nano·2026
Same journal

In Situ Oxygen Shuttling within a Bilayer Electrified Membrane Enables Aeration-Free Electro-Fenton Water Purification.

ACS nano·2026
Same journal

Single Atoms as Growth Directors: From Graphene Edges to Atomically Precise Interfaces in 2D Materials.

ACS nano·2026
See all related articles

Related Experiment Video

Updated: Jun 25, 2025

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

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

Published on: July 20, 2022

2.7K

Electrical Control Grain Dimensionality with Multilevel Magnetic Anisotropy.

Shengyao Li1, Sabpreet Bhatti1, Siew Lang Teo2

  • 1Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore.

ACS Nano
|May 23, 2024
PubMed
Summary
This summary is machine-generated.

Scientists electrically controlled grain dimensionality to tune magnetic properties for spintronics. This method enables nonvolatile modulation of magnetic memory devices and synaptic applications.

Keywords:
domain wall motionelectrochemical gatingferromagnetismgrain sizemultilevel magnetic anisotropyspin−orbit torque switchingsuperparamagnetism

More Related Videos

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons
09:54

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

Published on: July 14, 2021

4.8K
Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
09:43

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

Published on: November 7, 2017

9.5K

Related Experiment Videos

Last Updated: Jun 25, 2025

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

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

Published on: July 20, 2022

2.7K
Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons
09:54

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

Published on: July 14, 2021

4.8K
Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
09:43

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

Published on: November 7, 2017

9.5K

Area of Science:

  • Spintronics
  • Materials Science
  • Condensed Matter Physics

Background:

  • Electrical control of magnetic anisotropy is crucial for advanced data storage.
  • Magnetic anisotropy is typically linked to grain dimensionality, set during fabrication.
  • Electrically controlling grain dimensionality for anisotropy modulation remains experimentally challenging.

Purpose of the Study:

  • To demonstrate electric field control of grain dimensionality.
  • To establish grain dimensionality control as a mechanism for tuning interfacial magnetism.
  • To explore applications in multilevel magnetic memory and synaptic devices.

Main Methods:

  • Applying gate voltages to induce changes in magnetic thin films.
  • Conducting electrical and elemental analysis to verify grain dimensionality variations.
  • Investigating the impact of grain dimensionality on domain wall motion.

Main Results:

  • Demonstrated electric field control over grain dimensionality.
  • Observed a transition from ferromagnetic to superparamagnetic behavior with reduced grain size.
  • Achieved nonvolatile and reversible modulation of coercivity.
  • Confirmed a shift from multidomain to single-domain states.

Conclusions:

  • Electric field control of grain dimensionality is a viable strategy for tuning interfacial magnetism.
  • Grain size engineering offers a pathway for high-performance spintronics.
  • This approach enhances applicability for multilevel magnetic memory and synaptic devices.