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

Unsymmetric Bending - Angle of Neutral Axis01:15

Unsymmetric Bending - Angle of Neutral Axis

531
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
531
Bewley Lattice Diagram01:12

Bewley Lattice Diagram

940
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
940
Torsion of Noncircular Members01:16

Torsion of Noncircular Members

272
Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
272
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

3.1K
Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
3.1K
Gauss's Law: Planar Symmetry01:27

Gauss's Law: Planar Symmetry

8.6K
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
8.6K
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.2K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Quantum phases in twisted homobilayer transition metal dichalcogenides.

National science review·2026
Same author

Moiré Band Theory for M-Valley Twisted Transition Metal Dichalcogenides.

Physical review letters·2025
Same author

Vortex Lattice States of Bilayer Electron-Hole Fluids in Quantizing Magnetic Fields.

Physical review letters·2025
Same author

A cohort study of predictors of short-term nonfatal suicidal and self-harm events among individuals with mental health disorders treated in the emergency department.

Journal of psychiatric research·2025
Same author

Sub-4 nanometer porous membrane enables highly efficient electrodialytic fractionation of dyes and inorganic salts.

Nature communications·2025
Same author

Non-Precious Metal Catalysts with Gradient Oxidative Dual Sites Boost Bimolecular Activation for Catalytic Oxidation Reactions.

Angewandte Chemie (International ed. in English)·2025
Same journal

Erratum: Spectroscopy and Ground-State Transfer of Ultracold Bosonic ^{39}K^{133}Cs Molecules [Phys. Rev. Lett. 135, 203401 (2025)].

Physical review letters·2026
Same journal

Erratum: Lifetime of the ^{2}F_{7/2} Level in Yb^{+} for Spontaneous Emission of Electric Octupole Radiation [Phys. Rev. Lett. 127, 213001 (2021)].

Physical review letters·2026
Same journal

Laser-Plasma Based Seeded Free Electron Laser in the High-Gain Regime.

Physical review letters·2026
Same journal

Parent Hamiltonians for Stabilizer Quantum Many-Body Scars.

Physical review letters·2026
Same journal

Properties of Heavy Cosmic Nuclei Phosphorus, Chlorine, Argon, Potassium, and Calcium: Results from the Alpha Magnetic Spectrometer.

Physical review letters·2026
Same journal

Role of Spin-Isospin Symmetries in Nuclear β-Decays.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Oct 16, 2025

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

8.2K

Exact Diagonalization for Magic-Angle Twisted Bilayer Graphene.

Pawel Potasz1, Ming Xie2, A H MacDonald2

  • 1Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA and Department of Physics, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.

Physical Review Letters
|October 15, 2021
PubMed
Summary
This summary is machine-generated.

Researchers found that the ground state of magic angle twisted bilayer graphene is a spin ferromagnet in regions of strong superconductivity. Near specific fillings, Chern insulator states emerge with spontaneous polarization, influenced by band filling.

More Related Videos

Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

9.7K
Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
06:57

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

2.4K

Related Experiment Videos

Last Updated: Oct 16, 2025

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

8.2K
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

9.7K
Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
06:57

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

2.4K

Area of Science:

  • Condensed matter physics
  • Materials science

Background:

  • Magic angle twisted bilayer graphene exhibits complex electronic properties, including superconductivity and correlated insulating states.
  • Understanding the ground states of these systems is crucial for developing novel electronic devices.

Purpose of the Study:

  • To investigate the ground state properties of magic angle twisted bilayer graphene.
  • To identify the nature of magnetic ordering and insulating states in this material.

Main Methods:

  • Finite-size exact-diagonalization calculations.
  • Utilizing a Hilbert space defined by continuum-model flat moiré bands.

Main Results:

  • Evidence suggests the ground state is a spin ferromagnet for moiré band fillings where superconductivity is strongest (3>|ν|>2).
  • Near |ν|=3, Chern insulator ground states were identified, exhibiting spontaneous spin, valley, and sublattice polarization.
  • The anisotropy energy within this order-parameter space shows strong dependence on the band-filling factor.

Conclusions:

  • The ground state of magic angle twisted bilayer graphene transitions between spin ferromagnetic and Chern insulator phases depending on the moiré band filling.
  • Accurate modeling requires incorporating remote band self-energy effects for reliable description of flat band correlations.