Related Experiment Video
Updated: Jun 14, 2025
06:56
Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
Published on: May 23, 2017
12.2K
Nonlinear physics of moiré superlattices
Luojun Du1,2, Zhiheng Huang3,4, Jin Zhang5
1Beijing National Laboratory for Condensed Matter Physics, Key Laboratory for Nanoscale Physics and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, China. luojun.du@iphy.ac.cn.
Nature Materials
|August 30, 2024
Summary
Synthetic quantum moiré superlattices exhibit novel nonlinear electronic and optical properties. This review highlights recent advances and future potential in this exciting area of physics.
Area of Science:
- Physics
- Materials Science
Background:
- Nonlinear physics offers new phenomena and applications beyond linear processes.
- Synthetic quantum moiré superlattices are emerging platforms for advanced studies.
Purpose of the Study:
- To review recent theoretical and experimental progress in nonlinear physics of moiré superlattices.
- To focus on emerging nonlinear electronic, optical, and optoelectronic properties.
Main Methods:
- Review of recent theoretical advancements.
- Analysis of experimental findings.
Main Results:
- Emerging nonlinear properties include the anomalous Hall effect, harmonic generation, optical chirality, optical solitons, and photogalvanic effect.
- These properties are observed in synthetic quantum moiré superlattices.
Conclusions:
- The field of nonlinear physics in moiré superlattices is rapidly progressing.
- Significant opportunities and challenges exist for fundamental physics and technological innovation.
Related Concept Videos
01:18First Law: Particles in Two-dimensional Equilibrium
5.0K
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...
Newton's first law tells us about...
5.0K
01:28Symmetry in Maxwell's Equations
3.3K
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
3.3K
01:10First Law: Particles in One-dimensional Equilibrium
6.8K
Newton's first law of motion states that a body at rest remains at rest, or if in motion, remains in motion at constant velocity, unless acted on by a net external force. It also states that there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. This cause is a net external force. For example, consider what happens to an object sliding along a rough horizontal surface. The object quickly grinds to a halt, due to the net force of friction. If...
6.8K
02:32The de Broglie Wavelength
25.4K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
25.4K
01:27Gauss's Law: Planar Symmetry
7.9K
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...
7.9K
01:19Fluid Mosaic Model
11.5K
Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich...
11.5K