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

Magnetic Field Due To A Thin Straight Wire01:28

Magnetic Field Due To A Thin Straight Wire

6.3K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
6.3K
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

6.4K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
6.4K
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

6.0K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
6.0K
Magnetic Field of a Solenoid01:18

Magnetic Field of a Solenoid

6.0K
A solenoid is a conducting wire coated with an insulating material, wound tightly in the form of a helical coil. The magnetic field due to a solenoid is the vector sum of the magnetic fields due to its individual turns. Therefore, for an ideal solenoid, the magnetic field within the solenoid is directly proportional to the number of turns per unit length and the current. Conversely, the magnetic field outside the solenoid is zero.
Consider a solenoid with 100 turns wrapped around a cylinder of...
6.0K
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

4.8K
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.
4.8K
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

You might also read

Related Articles

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

Sort by
Same author

Impact of static and dynamic magneto-mechanical stimulation with vortex microdiscs on glioblastoma cells cultured on 2D substrates with physiological stiffness.

Nanoscale advances·2026
Same author

Modelling of magnetic vortex microdisc dynamics under varying magnetic field in biological viscoelastic environments.

Nanoscale advances·2026
Same author

Correction: Optical response of magnetically actuated biocompatible membranes.

Nanoscale·2025
Same author

Substrate softness increases magnetic microdiscs-induced cytotoxicity.

Nanoscale advances·2024
Same author

Effect of Advanced Footwear Technology Spikes on Sprint Acceleration: A Multiple N-of-1 Trial.

Sports medicine - open·2024
Same author

Fast current-induced skyrmion motion in synthetic antiferromagnets.

Science (New York, N.Y.)·2024
Same journal

A pH-Tolerant Nickel-Vanadium Phosphonate Framework for Stable Aqueous Supercapacitor Cycling.

ACS nano·2026
Same journal

Reconfigurable Photoelectric Coaxial Fiber-Based Memristors for Neuromorphic Computing.

ACS nano·2026
Same journal

Multidimensional Emission Control of CsPbI<sub>3</sub> Quantum Dots Using Plasmonic Quasi-Bound States in the Continuum.

ACS nano·2026
Same journal

Reconfigurable 2D Floating-Gate Field-Effect Transistors with Graphene-Induced Interfacial Polarization for Unified Memory-Logic Integration.

ACS nano·2026
Same journal

Bioinstructive Hybrid Scaffold Integrating Phosphoinositide 3-Kinase-Akt and Complementary Survival Pathways for Kidney Regeneration.

ACS nano·2026
Same journal

Robust Quantum Cutting via Halide-Bearing Ligand Passivation and Gradient Halide Reconstruction for Ultrabroadband Ultraviolet-to-Near-Infrared Photodetection and Imaging.

ACS nano·2026
See all related articles

Related Experiment Video

Updated: Feb 17, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.3K

Low-Noise Nanoscale Vortex Sensor for Out-of-Plane Magnetic Field Detection.

Ajay Jha1, Alvaro Palomino1, Stéphane Auffret1

  • 1University Grenoble Alpes, CEA, CNRS, Grenoble-INP, Spintec, 38000 Grenoble, France.

ACS Nano
|February 16, 2026
PubMed
Summary
This summary is machine-generated.

A new nanoscale magnetic tunnel junction (MTJ) vortex sensor offers a wide dynamic range exceeding 200 mT for magnetic field detection. Its design minimizes noise, enhancing sensitivity and accuracy for advanced applications.

Keywords:
magnetic field sensormagnetic tunnel junctionmagnetic vortexnoise measurementtunnel magnetoresistance

More Related Videos

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

3.4K
Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
06:27

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

Published on: July 2, 2018

8.6K

Related Experiment Videos

Last Updated: Feb 17, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.3K
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

3.4K
Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
06:27

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

Published on: July 2, 2018

8.6K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Magnetic tunnel junctions (MTJs) are crucial for magnetic sensing.
  • Vortex states in nanomagnets offer unique magnetic properties.
  • Out-of-plane magnetic field sensitivity is critical for many applications.

Purpose of the Study:

  • To develop and characterize a nanoscale MTJ-based vortex sensor for out-of-plane magnetic fields.
  • To investigate the impact of structural parameters on sensor performance.
  • To demonstrate enhanced dynamic range, sensitivity, and detectivity.

Main Methods:

  • Fabrication of sub-100 nm MTJ sensors with strong shape anisotropy.
  • Experimental measurements of sensor response to magnetic fields.
  • Micromagnetic simulations to analyze vortex core dynamics and defect influence.

Main Results:

  • Achieved a dynamic range exceeding 200 mT, significantly higher than conventional sensors.
  • Demonstrated low intrinsic noise and improved detectivity and resolution.
  • Identified field-dependent vortex core expansion/contraction as key to reduced noise.

Conclusions:

  • The nanoscale out-of-plane vortex sensor architecture shows great promise for high-performance magnetic sensing.
  • Reduced Barkhausen noise due to vortex core dynamics enhances accuracy.
  • Scalable array integration offers further improvements in noise and detectivity.