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

Mohr's Circle for Plane Strain01:18

Mohr's Circle for Plane Strain

Mohr's circle is a crucial graphical method used to analyze plane strain by plotting strain on a set of cartesian coordinates, where the abscissa is normal strain ∈ and the ordinate is shear strain γ. Similarly to Mohr’s circle for plane stress, two points X and Y are plotted. Their coordinates are (∈x, -γXY) and (∈Y, γXY), respectively.
Mohr's circle visually represents the strain states under various conditions, which is essential for understanding material behavior. The center of Mohr's...
Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Three-Dimensional Analysis of Strain01:29

Three-Dimensional Analysis of Strain

Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
First Law: Particles in Two-dimensional Equilibrium01:18

First Law: Particles in Two-dimensional Equilibrium

Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about the...
Mohr's Circle for Plane Stress01:23

Mohr's Circle for Plane Stress

Mohr's circle is a graphical method for identifying the state of stress at a point in a material, making it easier to analyze stress transformations under plane stress conditions. This two-dimensional technique visualizes both normal and shearing stresses on an element.
Consider a set of Cartesian coordinates. The horizontal and vertical axes correspond to normal stress (σ) and shearing stress (τ), respectively. Two points, points A and B, are defined by the normal and shear stresses on the...
Stress-Strain Diagram - Brittle Materials01:24

Stress-Strain Diagram - Brittle Materials

Brittle materials, including glass, cast iron, and stone, exhibit unique characteristics. They fracture without considerable change in their elongation rate, indicating that their breaking and ultimate strength are equivalent. Such materials also show lower strain levels at the point of rupture. The failure in brittle materials predominantly results from normal stresses, as evidenced by the rupture created along a surface perpendicular to the applied load. These materials do not display...

You might also read

Related Articles

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

Sort by
Same author

Lorentzian Switching Dynamics in HZO-Based FeMEMS Synapses for Neuromorphic Weight Storage.

Nano letters·2026
Same author

Adhesion of Self-Complementary, Sinusoidal Surfaces Fabricated Using Two-Photon Polymerization.

ACS applied polymer materials·2025
Same author

Stem Cell-Derived Extracellular Vesicles in Skin Antiaging Treatments.

ACS nano·2025
Same author

Vacancy-induced suppression of charge density wave order and its impact on magnetic order in kagome antiferromagnet FeGe.

Nature communications·2025
Same author

Memorization of Strain-Induced Moiré Patterns in Vertical van der Waals Materials.

ACS applied materials & interfaces·2025
Same author

Layers split and zip for phase transition.

Nature materials·2025

Related Experiment Video

Updated: May 29, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

Strain-induced deterministic moiré superlattices in 2D materials.

Yu-Mi Wu1, Sihun Lee1, Yufeng Xi2

  • 1Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853.

Proceedings of the National Academy of Sciences of the United States of America
|May 27, 2026
PubMed
Summary

Researchers created moiré superlattices in 2D materials using heterostrain, not just twisting. This scalable method enables new moiré pattern designs in transition metal dichalcogenides.

Keywords:
atomic-resolution STEMheterostrainmoiré superlatticepolar distortionsstructural reconstruction

More Related Videos

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

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

Related Experiment Videos

Last Updated: May 29, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

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

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Moiré superlattices in 2D materials are typically formed by lattice mismatch or rotational misalignment.
  • Transition metal dichalcogenides (TMDs) are a key class of 2D materials with unique electronic and optical properties.

Purpose of the Study:

  • To explore heterostrain as a novel method for creating moiré superlattices in 2D materials.
  • To investigate the relationship between applied heterostrain and resulting moiré superlattice geometry.
  • To characterize the atomic structure and polarization effects in strain-induced moiré patterns.

Main Methods:

  • Applying patterned thin-film stressors to induce deterministic heterostrain in 2D materials.
  • Utilizing scanning transmission electron microscopy (STEM) to resolve atomic structure, lattice deformations, and stacking variations.
  • Analyzing the resulting moiré patterns, including stripe and distorted hexagonal geometries.

Main Results:

  • Demonstrated a scalable process for generating moiré superlattices via heterostrain in TMDs.
  • Showcased that uniaxial and biaxial heterostrain produce distinct moiré patterns.
  • Observed in-plane polar distortions and unique polarization textures in MoS2 moiré superlattices, differing from twist-induced patterns.

Conclusions:

  • Heterostrain offers a deterministic and scalable route to engineer moiré superlattices in 2D materials.
  • This approach allows for the design of novel moiré geometries and polarization textures.
  • Opens new avenues for creating advanced heterostrain-engineered 2D electronic and photonic devices.