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

Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

1.6K
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
1.6K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

1.9K
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
1.9K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.6K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the involved orbitals. The...
1.6K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.6K
Coupling interactions are strongest between NMR-active nuclei bonded to each other, where spin information can be transmitted directly through the pair of bonding electrons. While nuclei polarize their electrons to the opposite spins, the bonding electron pair has opposite spins. Configurations with antiparallel nuclear spins are expected to be lower in energy. When coupling makes antiparallel states more favorable, J is considered to have a positive value. The one-bond coupling constant, 1J,...
1.6K
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

4.9K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
4.9K
Magnetic Damping01:17

Magnetic Damping

1.2K
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Tailoring quantum walks in integrated photonic lattices.

Optics express·2025
Same author

Experimental Evidence of Stimulated Raman Rescattering in Laser-Plasma Interaction.

Physical review letters·2025
Same author

Multiplicity of electron- and photon-seeded electromagnetic showers at multipetawatt laser facilities.

Physical review. E·2025
Same author

Tunable Generation of Spatial Entanglement in Nonlinear Waveguide Arrays.

Physical review letters·2024
Same author

Stress resilience is an active and multifactorial process manifested by structural, functional, and molecular changes in synapses.

Neurobiology of stress·2024
Same author

Approaching Maximal Precision of Hong-Ou-Mandel Interferometry with Nonperfect Visibility.

Physical review letters·2024
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: Mar 14, 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

7.4K

Spin-Orbit Twisted Spin Waves: Group Velocity Control.

F Perez1, F Baboux1,2, C A Ullrich3

  • 1Institut des Nanosciences de Paris, CNRS/Université Paris VI, Paris 75005, France.

Physical Review Letters
|October 8, 2016
PubMed
Summary
This summary is machine-generated.

We introduce spin-orbit twisted spin waves in a magnetized electron gas, demonstrating how spin-orbit coupling controls their speed. This discovery enables new spin-wave devices.

More Related Videos

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

24.0K
Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
06:51

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

7.5K

Related Experiment Videos

Last Updated: Mar 14, 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

7.4K
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

24.0K
Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
06:51

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

7.5K

Area of Science:

  • Condensed Matter Physics
  • Spintronics
  • Quantum Materials

Background:

  • Spin-orbit coupling (SOC) significantly influences electron behavior in low-dimensional systems.
  • Understanding electron motion in magnetized two-dimensional electron gases is crucial for spintronics.
  • Coulomb interactions play a vital role in the collective dynamics of electrons.

Purpose of the Study:

  • To theoretically and experimentally investigate the combined effects of SOC, Coulomb interaction, and electron motion.
  • To introduce and characterize a new type of spin excitation: spin-orbit twisted spin waves.
  • To explore the tunability of spin wave properties via optical gating.

Main Methods:

  • Theoretical analysis involving a transformation of the many-body Hamiltonian.
  • Experimental validation using Raman scattering measurements.
  • Optical gating techniques to control electron density and SOC strength.

Main Results:

  • Introduction of spin-orbit twisted spin waves with energy dispersions and damping rates determined by a wave-vector shift.
  • Experimental confirmation of theoretical predictions through Raman spectroscopy.
  • Demonstration of tunable spin wave group velocity by altering SOC strength via optical gating.

Conclusions:

  • The study reveals a novel mechanism for controlling spin waves, distinct from Dzyaloshinskii-Moriya interactions.
  • Spin-orbit twisted spin waves offer a new platform for manipulating spin information.
  • The findings open avenues for developing advanced spin-wave routing devices and lenses.