Help. In tight binding 2d square lattice with two atoms basis
Physics Asked by Tornado mas on April 6, 2021
How we get the equations inside the box, which represent hopping between p and d orbital. I mean why we consider only two neighbouring.
Thanks in advance
One Answer
Welcome to PhysSE!
I didn't understand your first question, but I can answer the second one: these kinds of systems tend to have highly localized states - not in Anderson sense - such that its electronic clouds rarely pay visits to its neighbors'. The nearest-neighbor approximation can be done safely a lot of the time, because they usually are the most important in a material and suffice to explain its low-energy physics. Please, check Ashcroft and Mermin's Solid State Physics chapter 10 for an enlightening exposition, or Wikipedia's page for a quick start.
Just out of curiosity: which book are these images from?
Answered by daydreamer on April 6, 2021
Add your own answers!
Ask a Question
Get help from others!
Recent Questions
- How can I transform graph image into a tikzpicture LaTeX code?
- How Do I Get The Ifruit App Off Of Gta 5 / Grand Theft Auto 5
- Iv’e designed a space elevator using a series of lasers. do you know anybody i could submit the designs too that could manufacture the concept and put it to use
- Need help finding a book. Female OP protagonist, magic
- Why is the WWF pending games (“Your turn”) area replaced w/ a column of “Bonus & Reward”gift boxes?
Recent Answers
- Lex on Does Google Analytics track 404 page responses as valid page views?
- haakon.io on Why fry rice before boiling?
- Jon Church on Why fry rice before boiling?
- Joshua Engel on Why fry rice before boiling?
- Peter Machado on Why fry rice before boiling?