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

Phase Diagrams02:39

Phase Diagrams

43.6K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
43.6K
Phase Diagram01:19

Phase Diagram

6.1K
The phase of a given substance depends on the pressure and temperature. Thus, plots of pressure versus temperature showing the phase in each region provide considerable insights into the thermal properties of substances. Such plots are known as phase diagrams. For instance, in the phase diagram for water (Figure 1), the solid curve boundaries between the phases indicate phase transitions (i.e., temperatures and pressures at which the phases coexist).
6.1K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.1K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.1K
P-N junction01:11

P-N junction

673
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
673
Phase Transitions02:31

Phase Transitions

20.2K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
20.2K
Electric Field of Parallel Conducting Plates01:16

Electric Field of Parallel Conducting Plates

1.1K
Gauss' law relates the electric flux through a closed surface to the net charge enclosed by that surface. Gauss's law can be applied to find the electric field and the charge enclosed in a region depending on its charge distribution.
Consider a cross-section of a thin, infinite conducting plate having a positive charge. For such a large thin plate, as the thickness of the plate tends to zero, the positive charges lie on the plate's two large faces. Without an external electric...
1.1K

You might also read

Related Articles

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

Sort by
Same author

A Joule-Thomson low-temperature scanning tunneling microscope with vector magnet and rotatable scanning head.

The Review of scientific instruments·2026
Same author

Simultaneous nanoscale imaging of local conductivity and chemical potential in a quantum Hall isospin ferromagnet.

Nature communications·2026
Same author

Chlorinated hexaazatrinaphthylene as an efficient solid-state redox mediator for membrane-free acidic decoupled water electrolysis.

Journal of colloid and interface science·2026
Same author

Chang'e-6 lander reveals local hour-scale temporal variations in lunar surface water.

Science bulletin·2026
Same author

Association of inflammation-related plasma proteins with vascular cognitive burden and Alzheimer's disease: A multi-method study.

Journal of Alzheimer's disease : JAD·2026
Same author

Salvianolic Acid B Inhibits Ferroptosis Through ACSL4 Pathway Regulation in sepsis-associated encephalopathy Mice.

Molecular neurobiology·2026

Related Experiment Video

Updated: Sep 10, 2025

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

15.6K

Visualization of Intervalley Coherent Phase in PtSe_{2}/bilayer Graphene Heterojunction.

Kai Fan1, Ting-Fei Guo1, Bohao Li2

  • 1Huazhong University of Science and Technology, School of Physics and Wuhan National High Magnetic Field Center, Wuhan 430074, China.

Physical Review Letters
|August 27, 2025
PubMed
Summary

Researchers visualized the intervalley coherent (IVC) phase in graphene systems using a novel heterostructure. This visualization offers new insights into emergent physics and potential applications in moiré interfaces.

More Related Videos

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

7.7K
A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
07:12

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

9.8K

Related Experiment Videos

Last Updated: Sep 10, 2025

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

15.6K
Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

7.7K
A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
07:12

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

9.8K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Surface Science

Background:

  • The intervalley coherent (IVC) phase in graphene is crucial for understanding emergent electronic properties.
  • Direct visualization of the IVC phase is essential for probing its underlying physics.

Purpose of the Study:

  • To achieve direct microscopic visualization of the IVC phase in a specific graphene heterostructure.
  • To explore the role of moiré superlattices in generating and amplifying the IVC phase.

Main Methods:

  • Spectroscopic imaging scanning tunneling microscopy (SI-STM) was employed.
  • Fabrication of heterostructures involving monolayer PtSe2 and bilayer-graphene (BLG) on graphite.

Main Results:

  • A sqrt[3]×sqrt[3] modulation pattern was observed, superimposed on the moiré superlattice.
  • This pattern correlated with Fermi level gap opening and showed an antiphase conductance distribution.
  • The modulation and gap disappeared in a different heterostructure with higher carrier density.

Conclusions:

  • The observed modulation pattern originates from the IVC phase of BLG, amplified by the moiré superlattice.
  • This work demonstrates a method for visualizing the IVC phase.
  • It opens avenues for generating and amplifying the IVC phase using moiré interfaces.