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

2.6K
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...
2.6K
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

1.1K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
1.1K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

709
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
709
Diamagnetism01:26

Diamagnetism

2.5K
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....
2.5K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.1K
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...
1.1K
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

You might also read

Related Articles

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

Sort by
Same author

From Triangular Correlated Paramagnet to Multi-q Noncoplanar Spin State in Spinel GeFe_{2}O_{4}.

Physical review letters·2026
Same author

Field-Induced Magnon Decay, Magnon Shadows, and Rotonlike Excitations in the Honeycomb Antiferromagnet YbBr_{3}.

Physical review letters·2025
Same author

Microscopic Origin of Reduced Magnetic Order in a Frustrated Metal.

Physical review letters·2025
Same author

Absence of Altermagnetic Magnon Band Splitting in MnF_{2}.

Physical review letters·2025
Same author

Uncommon Magnetic Ordering in the Quantum Magnet Yb_{3}Ga_{5}O_{12}.

Physical review letters·2024
Same author

Continuum Excitations in a Spin Supersolid on a Triangular Lattice.

Physical review letters·2024

Related Experiment Video

Updated: Aug 30, 2025

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

8.2K

Spin Density Wave versus Fractional Magnetization Plateau in a Triangular Antiferromagnet.

L Facheris1, K Yu Povarov1, S D Nabi1

  • 1Laboratory for Solid State Physics, ETH Zürich, 8093 Zürich, Switzerland.

Physical Review Letters
|September 2, 2022
PubMed
Summary

Researchers achieved a spin-density wave (SDW) state in Cs_{2}CoBr_{4} due to competing anisotropies and frustrated exchange. This led to the first observed spin-density wave to up-up-down transition in quantum magnets.

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

2.8K
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

4.9K

Related Experiment Videos

Last Updated: Aug 30, 2025

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

8.2K
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

2.8K
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

4.9K

Area of Science:

  • Condensed Matter Physics
  • Quantum Magnetism
  • Materials Science

Background:

  • Antiferromagnetic insulators are crucial for understanding exotic quantum states.
  • Spin-density waves (SDWs) are complex magnetic phases with unique electronic properties.
  • Quantum frustration in magnetic materials leads to novel phenomena.

Purpose of the Study:

  • To investigate the realization and properties of the spin-density wave (SDW) state in the quantum frustrated antiferromagnetic insulator Cs_{2}CoBr_{4}.
  • To explore the relationship between competing anisotropies, frustrated interchain exchange, and the stabilization of the SDW state.
  • To identify and characterize the transition from the SDW phase to a commensurate magnetic structure.

Main Methods:

  • Experimental synthesis and characterization of Cs_{2}CoBr_{4} single crystals.
  • Magnetic susceptibility measurements to identify magnetic phases and transitions.
  • Neutron diffraction studies to determine the magnetic structure and ordering wavevector.

Main Results:

  • An excellent realization of a highly nonclassical incommensurate spin-density wave (SDW) state was observed in Cs_{2}CoBr_{4}.
  • The SDW state is stabilized by competing planar in-chain anisotropies and frustrated interchain exchange, distinct from Ising spin chain behavior.
  • A broad m=1/3 magnetization plateau was found adjacent to the SDW phase, indicating a commensurate locking into the up-up-down (UUD) spin structure.

Conclusions:

  • Cs_{2}CoBr_{4} provides a prime example of an incommensurate SDW state stabilized by competing anisotropies and frustration.
  • The study demonstrates the first observation of a spin-density wave to up-up-down (SDW-UUD) transition in triangular-type quantum magnets.
  • This work opens new avenues for exploring complex magnetic phenomena in frustrated quantum materials.