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

Colors and Magnetism03:02

Colors and Magnetism

11.4K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.4K
Valence Bond Theory02:42

Valence Bond Theory

8.4K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.4K
Ferromagnetism01:31

Ferromagnetism

2.4K
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...
2.4K
Diamagnetism01:26

Diamagnetism

2.4K
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....
2.4K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

25.8K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
25.8K
Paramagnetism01:30

Paramagnetism

2.5K
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...
2.5K

You might also read

Related Articles

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

Sort by
Same author

Observation of Switchable Chiral Magnons in an Altermagnet.

Physical review letters·2026
Same author

Spin excitations near the pressure-induced antiferromagnetic transition in SrCu<sub>2</sub>(BO<sub>3</sub>)<sub>2</sub>.

Journal of applied crystallography·2026
Same author

Doping dependence of the dipolar correlation length scale in metallic SrTiO<sub>3</sub>.

Nature communications·2025
Same author

Electronic structure of mononuclear and radical-bridged dinuclear cobalt(II) single-molecule magnets.

Nature communications·2025
Same author

Design, calibration, and performance of a uniaxial pressure cell for neutron scattering studies of quantum magnetism.

The Review of scientific instruments·2023
Same author

Nanoscale structure of a hybrid aqueous-nonaqueous electrolyte.

The Journal of chemical physics·2023

Related Experiment Video

Updated: May 15, 2025

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

1.9K

Interplanar magnetic exchange in CoPS3.

Andrew Wildes1, Björn Fåk2, Ursula Bengaard Bengaard Hansen1

  • 1Institut Laue-Langevin, B.P. 156, Cedex 9, Grenoble, 38042, FRANCE.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|May 13, 2025
PubMed
Summary

Researchers measured magnetic exchange in cobalt thiophosphate (CoPS3) using neutron spectrometry. The study found a surprisingly small, antiferromagnetic exchange interaction, suggesting anisotropy may explain its ferromagnetic-like structure.

Keywords:
antiferromagnetismlayered compoundsneutron scatteringvan der Waals

More Related Videos

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.0K
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.4K

Related Experiment Videos

Last Updated: May 15, 2025

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

1.9K
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.0K
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.4K

Area of Science:

  • Condensed matter physics
  • Materials science
  • Magnetism

Background:

  • Van der Waals compounds exhibit unique magnetic properties.
  • Cobalt thiophosphate (CoPS3) is a layered magnetic material.
  • Understanding magnetic exchange interactions is crucial for materials design.

Purpose of the Study:

  • To determine the interplanar magnetic exchange parameter in CoPS3.
  • To investigate the relationship between magnetic structure and exchange interactions.
  • To compare findings with other transition metal thiophosphates.

Main Methods:

  • Neutron three-axis spectrometry was employed.
  • Analysis focused on determining the magnetic exchange parameter.
  • Magnetic structure correlations were examined.

Main Results:

  • The interplanar magnetic exchange parameter in CoPS3 was found to be small and antiferromagnetic.
  • The measured exchange value is 0.020±0.001 meV.
  • This finding contrasts with the observed ferromagnetic correlations between the ab-planes.

Conclusions:

  • A small anisotropy in exchange interactions is proposed as a potential explanation for the observed magnetic behavior.
  • The results provide insights into the magnetic interactions within CoPS3.
  • Comparison with related transition metal thiophosphates offers broader context for magnetic van der Waals materials.