Related Experiment Video

Updated: Sep 13, 2025

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.1K

Band evolution and topological edge states in an obliquely truncated Lieb-Kagome Floquet insulator

Sheng Xu, Zijing Wang, Peng Li

    Optics Express
    |July 30, 2025
    PubMed

    More Related Videos

    Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices11:24

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

    Published on: July 11, 2025

    6.5K
    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform05:39

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

    Published on: August 2, 2019

    9.7K

    Related Concept Videos

    Trends in Lattice Energy: Ion Size and Charge02:54

    Trends in Lattice Energy: Ion Size and Charge

    An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
    24.3K
    Fermi Level Dynamics01:12

    Fermi Level Dynamics

    The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
    Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
    The work...
    346
    Divergence and Curl of Electric Field01:25

    Divergence and Curl of Electric Field

    The divergence of a vector is a measure of how much the vector spreads out (diverges) from a point. For example, an electric field vector diverges from the positive charge and converges at the negative charge. The divergence of an electric field is derived using Gauss's law and is equal to the charge density divided by the permittivity of space. Mathematically, it is expressed as
    6.1K
    Equipotential Surfaces and Conductors01:16

    Equipotential Surfaces and Conductors

    For a conductor in which all charges are at rest, the conductor's surface is equipotential. The electric field is always perpendicular to equipotential surfaces. Therefore, in a conductor with static charges, the electric field just outside the conductor is always perpendicular to the conductor's surface. Any tangential component of the electric field will cause charges to move inside the conductor, which will violate the electrostatic nature of the system. In an electrostatic...
    3.6K
    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...
    5.2K
    Band Theory02:35

    Band Theory

    When two or more atoms come together to form a molecule, their atomic orbitals combine and molecular orbitals of distinct energies result. In a solid, there are a large number of atoms, and therefore a large number of atomic orbitals that may be combined into molecular orbitals. These groups of molecular orbitals are so closely placed together to form continuous regions of energies, known as the bands.
    The energy difference between these bands is known as the band gap.
    Conductor, Semiconductor,...
    15.5K