Understand Electronic Dispersion: Definition & Examples

It can be either linear or parabolic depending on the material's band structure. It is important for understanding the behavior of electrons in a material.In summary, electronic dispersion refers to the dispersion relation for electrons in a material, which can either be linear or parabolic depending on the material's band structure. It is an important concept for understanding the behavior of electrons.
  • #1
nouha
1
0
TL;DR Summary
I am not being able to understand what is the electronic dispersion exactly, I have came across it in few papers and I haven't find any resource that explained it clearly and simply.
I am not being able to understand what is the electronic dispersion exactly, I have came across it in few papers and I haven't find any resource that explained it clearly and simply.
I've came across 'the electronic dispersion is linear' and 'electronic dispersion is parabolic' and some graphs about it but I still didn't understand what is this electronic dispersion exactly, how do we get it and why it is so important
 
Physics news on Phys.org
  • #2
nouha said:
I've came across 'the electronic dispersion is linear' and 'electronic dispersion is parabolic'
Sound like it is just the dispersion relation (formula that expresses frequency as a function of wave vector ##k##) for electrons.
 
  • Like
Likes Lord Jestocost

FAQ: Understand Electronic Dispersion: Definition & Examples

What is electronic dispersion?

Electronic dispersion is a phenomenon in which the speed of light varies depending on the wavelength of light. This can occur in materials that have a high refractive index, causing the light to travel at different speeds through the material.

How does electronic dispersion affect light?

Electronic dispersion can cause light to separate into its component colors, known as dispersion. This is commonly seen in rainbows, where white light is dispersed into the colors of the visible spectrum. It can also cause distortion in images and affect the accuracy of optical instruments.

What are some examples of materials that exhibit electronic dispersion?

Some common examples of materials that exhibit electronic dispersion include glass, water, and diamond. These materials have a high refractive index, which causes light to travel at different speeds and results in dispersion.

Can electronic dispersion be controlled or manipulated?

Yes, electronic dispersion can be controlled and manipulated through the use of special materials and techniques. For example, the use of diffraction gratings can help control the dispersion of light, and the use of anti-reflective coatings can reduce the effects of dispersion in optical instruments.

How is electronic dispersion related to other types of dispersion?

Electronic dispersion is one of several types of dispersion that can occur in materials. Other types include chromatic dispersion, which is caused by differences in the speed of light for different wavelengths, and modal dispersion, which is caused by differences in the path length of different light rays. Electronic dispersion is unique in that it is caused by the interaction of light with the electrons in a material.

Similar threads

I Fermi Energy Calculations About Non Parabolic Dispersions
Replies
3
Views
2K
B Why don't solids always stick together?
Replies
5
Views
3K
Phonon Dispersion: Definition & Explanation
Replies
2
Views
3K
I Empty Lattice approximation/Nearly-free electron model
Replies
2
Views
3K
Dispersion relation for the free electron model
Replies
1
Views
8K
A Properties of Degenerate Electron Gas
Replies
5
Views
1K
Dynamical matrix and dispersion
Replies
1
Views
2K
Solid State Physics: Draw the Dispersion Relation from the Fermi Surface
Replies
1
Views
2K
A How to interpret N(E) vs. E graphs when performing Auger spectroscopy
Replies
6
Views
2K
A Does electron energy contribute to current
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top