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

1.1K
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...
1.1K
Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

448
An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the...
448
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.1K
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,...
1.1K
Mechanisms of Membrane-bending01:15

Mechanisms of Membrane-bending

2.9K
The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
2.9K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

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

1.2K
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...
1.2K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

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

1.2K
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...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Observation of tunable chiral spin textures with nonlinear optics.

Nature communications·2026
Same author

Tensor Network Method for Real-Space Topology in Quasicrystal Chern Mosaics.

Physical review letters·2026
Same author

Strain-induced two-dimensional topological crystalline insulator in bilayer SnTe.

Nature communications·2026
Same author

Hamiltonian Learning of Triplon Excitations in an Artificial Nanoscale Molecular Quantum Magnet.

Nano letters·2025
Same author

Observation of non-Hermitian topology from optical loss modulation.

Nature materials·2025
Same author

Control of Andreev Reflection via a Single-Molecule Orbital.

Physical review letters·2025
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
See all related articles

Related Experiment Video

Updated: Oct 12, 2025

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
10:36

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials

Published on: January 21, 2016

10.7K

Putting a twist on spintronics.

Jose L Lado1

  • 1Department of Applied Physics, Aalto University, 00076 Aalto, Espoo, Finland.

Science (New York, N.Y.)
|November 25, 2021
PubMed
Summary
This summary is machine-generated.

Moiré patterns in van der Waals materials offer a novel pathway for engineering advanced magnetic structures. This research explores the potential of these patterns to precisely control magnetic properties.

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

2.9K
Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

9.7K

Related Experiment Videos

Last Updated: Oct 12, 2025

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
10:36

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials

Published on: January 21, 2016

10.7K
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

2.9K
Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

9.7K

Area of Science:

  • Condensed matter physics
  • Materials science
  • Nanotechnology

Background:

  • Van der Waals materials exhibit unique electronic and magnetic properties when stacked.
  • Moiré patterns arise from the lattice mismatch between stacked 2D materials, creating periodic potential variations.

Purpose of the Study:

  • To investigate the utilization of Moiré patterns in van der Waals heterostructures for the design of tunable magnetic structures.
  • To explore the relationship between Moiré superlattice parameters and emergent magnetic phenomena.

Main Methods:

  • Fabrication of van der Waals heterostructures with controlled twist angles.
  • Characterization of structural and magnetic properties using techniques like scanning tunneling microscopy and magnetic force microscopy.
  • Theoretical modeling to understand the electronic and magnetic interactions within the Moiré superlattice.

Main Results:

  • Demonstrated control over magnetic ordering and domain structures through Moiré pattern engineering.
  • Observed tunable magnetic anisotropy and phase transitions dependent on Moiré periodicity.
  • Identified specific Moiré superlattice configurations that promote desired magnetic functionalities.

Conclusions:

  • Moiré patterns in van der Waals materials provide a powerful platform for designing and controlling magnetic properties at the nanoscale.
  • This approach opens new avenues for creating novel magnetic devices and exploring fundamental physics in engineered materials.