• Register
PhysicsOverflow is a next-generation academic platform for physicists and astronomers, including a community peer review system and a postgraduate-level discussion forum analogous to MathOverflow.

Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.

Please help promote PhysicsOverflow ads elsewhere if you like it.


New printer friendly PO pages!

Migration to Bielefeld University was successful!

Please vote for this year's PhysicsOverflow ads!

Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!

... see more

Tools for paper authors

Submit paper
Claim Paper Authorship

Tools for SE users

Search User
Reclaim SE Account
Request Account Merger
Nativise imported posts
Claim post (deleted users)
Import SE post

Users whose questions have been imported from Physics Stack Exchange, Theoretical Physics Stack Exchange, or any other Stack Exchange site are kindly requested to reclaim their account and not to register as a new user.

Public \(\beta\) tools

Report a bug with a feature
Request a new functionality
404 page design
Send feedback


(propose a free ad)

Site Statistics

200 submissions , 156 unreviewed
4,913 questions , 2,087 unanswered
5,318 answers , 22,548 comments
1,470 users with positive rep
808 active unimported users
More ...

  What is typical values of impurity concebtration to change band stucture?

+ 1 like - 0 dislike


I am interesting in researching of impurities affect on dos

and band structure. Maybe someone can help me with a start point, and answer on my questions:

1. What is the minimum concentration of impurities (for scintillators) shous be, to affect dos and band structure?

2. What is the maximum number of impurities, when people stop to consider they as inpurities, but as the complete structure?


asked Jan 12, 2019 in Theoretical Physics by Vladyslav (15 points) [ no revision ]
recategorized Jan 13, 2019 by Dilaton

the second question is amazing. You can also see the impurities locations as the total structure and the crystal as a kind of vacuum. It works also if you consider rather the defects resulting from impurities at large. One works always with materials having a given homogeneity such he can derive appropriate scale symmetries and invariants. Impurities might be very rare while their effects are noticiable. Some talk of impurities until a few percents because the general approaches remain more or less effective to interpret large scale properties.

Your answer

Please use answers only to (at least partly) answer questions. To comment, discuss, or ask for clarification, leave a comment instead.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.
Please consult the FAQ for as to how to format your post.
This is the answer box; if you want to write a comment instead, please use the 'add comment' button.
Live preview (may slow down editor)   Preview
Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
If you are a human please identify the position of the character covered by the symbol $\varnothing$ in the following word:
Then drag the red bullet below over the corresponding character of our banner. When you drop it there, the bullet changes to green (on slow internet connections after a few seconds).
To avoid this verification in future, please log in or register.

user contributions licensed under cc by-sa 3.0 with attribution required

Your rights