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

Paramagnetism01:30

Paramagnetism

2.7K
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...
2.7K
Diamagnetism01:26

Diamagnetism

2.6K
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....
2.6K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.3K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
1.3K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.3K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.3K
Atomic Nuclei: Nuclear Magnetic Moment00:59

Atomic Nuclei: Nuclear Magnetic Moment

2.3K
All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
2.3K
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

411
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...
411

You might also read

Related Articles

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

Sort by
Same author

Menaquinone-7 preserves Prg4<sup>+</sup> chondrocytes from iron-driven damage in aging associated osteoarthritis by targeting GPR68/MAPK/GPX4 feed-forward loop.

Phytomedicine : international journal of phytotherapy and phytopharmacology·2026
Same author

A study on cadmium immobilization by bacterial consortia: <i>Achromobacter insuavis</i> SL8 and <i>Enterobacter cancerogenus</i> SL12.

Microbiology spectrum·2026
Same author

Sexually Dimorphic Regulation of MiR-29a/c-3p in Human Endothelial Cells: Cell Functions and Transcriptome.

Journal of cellular physiology·2026
Same author

Survival of the metallic state in a single-hole multiband p-orbital molecular system.

Nature communications·2026
Same author

Disruption of Treg Homeostasis in Rheumatoid Arthritis via Ferroptosis-Mediated ETC Collapse and TXK-STAT3/PLCγ1 Activation.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

<i>Hex</i>-MASP for Mapping the Whole-tissue Spatial Proteome and the Intra-brain Distribution of Monoclonal Antibodies.

bioRxiv : the preprint server for biology·2026

Related Experiment Video

Updated: Oct 26, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.0K

Proton switching molecular magnetoelectricity.

Yong Hu1, Scott Broderick2, Zipeng Guo3

  • 1Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA.

Nature Communications
|July 30, 2021
PubMed
Summary

Researchers developed novel molecular multiferroics using machine learning and 3D printing. These materials exhibit strong magnetoelectric coupling, enabling proton-controlled magnetism with significant magnetization changes.

More Related Videos

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.2K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

14.8K

Related Experiment Videos

Last Updated: Oct 26, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.0K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.2K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

14.8K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Chemistry

Background:

  • Proton conduction and multiferroics offer pathways for strong magnetoelectric coupling and magneto-ionics.
  • Molecular magnetoelectrics are emerging as a versatile platform for advanced electronic devices.

Purpose of the Study:

  • To accelerate the design of hydrogen-bonded multiferroic macromolecules with tunable magnetic properties.
  • To investigate proton switching magnetoelectricity in three-dimensional molecular heterogeneous solids.

Main Methods:

  • Utilized machine learning and additive manufacturing for accelerated material design.
  • Synthesized three-dimensional molecular heterogeneous solids incorporating magnetic and ferroelectric components.

Main Results:

  • Achieved a reversible 29% magnetization control at the ferroelectric phase transition with a 160 K hysteresis width.
  • Demonstrated room-temperature reversible magnetic modulation at an electric field of 1 kV/cm.
  • Established a strong proton dependence of magnetic properties.

Conclusions:

  • Electrostatic proton transfer is a viable mechanism for controlling magnetization in hierarchical molecular multiferroics.
  • The developed materials offer a promising route for creating novel molecular magnetoelectrics.