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

Galvanometer01:25

Galvanometer

2.1K
Common devices, including car instrument panels, battery chargers, and inexpensive electrical instruments, measure potential difference (voltage), current, or resistance using a d'Arsonval galvanometer. This electromechanical instrument is also known as a moving coil galvanometer.
The galvanometer consists of  two concave-shaped permanent magnets, providing a uniform radial magnetic field in the annular region. In the center, a pivoted coil of fine copper wire is placed in the uniform...
2.1K
Magnetism01:30

Magnetism

6.3K
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
6.3K

You might also read

Related Articles

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

Sort by
Same author

Comparative study of Raman-coherence-assisted nonlinear magneto-optical rotation in D1 and D2 transitions using cold rubidium atoms.

Optics letters·2026
Same author

Femtotesla atomic magnetometer with counter-propagating optical sideband pumping.

Optics letters·2024
Same author

Observation of Exceptional Points in Thermal Atomic Ensembles.

Physical review letters·2023
Same author

PT-Symmetric Feedback Induced Linewidth Narrowing.

Physical review letters·2023
Same author

Evaluation of Occupational Health and Safety Management of Listed Companies in China's Energy Industry Based on the Combined Weight-Cloud Model: From the Perspective of FPE Information Disclosure.

International journal of environmental research and public health·2022
Same author

Multisystem Langerhans Cell Histiocytosis in Younger Infants First Presenting in Skin: A Case Series.

Journal of personalized medicine·2022
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Jun 9, 2025

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.1K

Subpicotesla Optomechanical Magnetometry.

An-Ning Xu1,2, Yifan Li1,3, Xiangliang Li1,4

  • 1State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, <a href="https://ror.org/03cve4549">Tsinghua University</a>, Beijing 100084, China.

Physical Review Letters
|October 25, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a novel solid-state magnetometer achieving high sensitivity at room temperature. This breakthrough removes the need for extreme conditions, enabling broader applications for sensitive magnetic field detection.

More Related Videos

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

2.0K
Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

23.2K

Related Experiment Videos

Last Updated: Jun 9, 2025

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
08:01

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

7.1K
High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

2.0K
Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

Published on: May 19, 2014

23.2K

Area of Science:

  • Physics
  • Engineering
  • Materials Science

Background:

  • High-sensitivity magnetometry is crucial for fundamental research (dark matter, exotic particles) and applied fields (geology, navigation, biomedicine).
  • Existing magnetometers often require restrictive operating conditions, such as cryogenic temperatures (superconducting quantum interference devices) or near-zero magnetic fields (atomic magnetometers), limiting their practical use.

Purpose of the Study:

  • To develop a high-sensitivity solid-state magnetometer operating under ambient conditions.
  • To demonstrate benchmark performance at room temperature and in Earth's magnetic field.

Main Methods:

  • Utilized a magnetostrictive gap-swing Fabry-Pérot cavity optomechanical system.
  • Leveraged strong resonance enhancement of the gap-swing mechanical mode for signal amplification.

Main Results:

  • Achieved a magnetic field sensitivity of 620 fT Hz^{-1/2} at room temperature and under Earth's magnetic field.
  • Projected potential to reach 5.9 fT Hz^{-1/2} by optimizing optomechanical coupling, approaching the thermal noise limit.

Conclusions:

  • The developed solid-state magnetometer offers high sensitivity without stringent environmental requirements.
  • This technology paves the way for portable, low-maintenance magnetometry solutions across diverse scientific and industrial applications.