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: Three-Bond Coupling (Vicinal Coupling)01:22

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

1.1K
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...
1.1K
Colors and Magnetism03:02

Colors and Magnetism

12.4K
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...
12.4K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.2K
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...
1.2K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

735
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.
735
Valence Bond Theory02:42

Valence Bond Theory

9.7K
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...
9.7K
NMR Spectroscopy: Spin–Spin Coupling01:08

NMR Spectroscopy: Spin–Spin Coupling

1.7K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
1.7K

You might also read

Related Articles

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

Sort by
Same author

High-rate single-crystalline Li-rich layered oxide with diversified surface-phase cation ordering for Li-ion batteries.

Nature communications·2026
Same author

A mechanosensitive lipolytic factor in the bone marrow promotes osteogenesis and lymphopoiesis.

Cell metabolism·2026
Same author

Overcoming Batch Variability: A Chemically Defined XRS-Based System for Ovine In Vitro Embryo Production.

Veterinary medicine international·2026
Same author

Gain optimization for enhanced solution quality of optoelectronic Ising machines.

Optics express·2026
Same author

Performance of a rapid, visual fingerstick serology self-test for Helicobacter pylori detection and typing: a prospective multicentre diagnostic accuracy study.

Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases·2026
Same author

NK-cell-derived exosomes exert antitumor potency via miR-140/XYLT1/HSPG2 axis.

Cellular & molecular biology letters·2026

Related Experiment Video

Updated: Sep 23, 2025

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.2K

Atomic Intercalation Induced Spin-Flip Transition in Bilayer CrI3.

Dongsi Wu1, Ying Zhao1, Yibin Yang1,2

  • 1School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.

Nanomaterials (Basel, Switzerland)
|May 14, 2022
PubMed
Summary

Intercalation and doping control the spin polarization in 2D magnets like CrI3. This study reveals how these methods induce phase transitions from antiferromagnetic to ferromagnetic states by enhancing superexchange interactions.

Keywords:
atomic intercalationdensity functional theoryspin-polarizationsuperexchange

More Related Videos

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.5K
Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
09:38

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

7.3K

Related Experiment Videos

Last Updated: Sep 23, 2025

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.2K
High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.5K
Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
09:38

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

7.3K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Mechanics

Background:

  • Two-dimensional (2D) magnets exhibit unique phenomena due to spin polarization modulated by factors like phonons, stacking, and doping.
  • The precise mechanisms governing modulated spin polarization in these materials remain incompletely understood.

Purpose of the Study:

  • To theoretically and computationally investigate the control of interlayer magnetic coupling in CrI3 bilayers.
  • To elucidate the mechanisms behind the antiferromagnetic (AFM) to ferromagnetic (FM) phase transitions induced by intercalation and carrier doping.

Main Methods:

  • Theoretical modeling and computational simulations.
  • Analysis of superexchange interactions.
  • Investigation of intercalation (O, Li) and carrier doping effects.

Main Results:

  • Interlayer atomic intercalation and carrier doping effectively control the magnetic phase transition in CrI3 bilayers.
  • Atom intercalation enhances superexchange interactions between adjacent Cr layers, driving the AFM to FM transition.
  • Oxygen (O) intercalation improves superexchange via Cr 3d-O 2p coupling; Lithium (Li) intercalation induces stronger FM coupling due to electron doping.

Conclusions:

  • The study provides a comprehensive understanding of the spin exchange mechanisms governing interlayer magnetic coupling in 2D magnetic materials.
  • Demonstrates tunable magnetic properties in CrI3 bilayers through external stimuli like intercalation and doping.