1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Tight binding model, help please!

  1. Jan 15, 2010 #1
    1. The problem statement, all variables and given/known data

    In the tight binding model, (E=Eo + alpha + (2gamma coska)), how are parameters alpha and gamma affected if the lattice spacing, a, is increased?

    I know the equations for gamma and alpha but can't type them in here because they involve integrals and I don't know how to put those in on this forum.

    Thanks in advance!


    Sorry, didn't realise how the forums worked, so posted in this area instead. Its taking far too long to figure out how to post the equations in latex on here so i apologise but this isnt technically homework help. My final year solid state physics 2 exam is tomorrow and this wasn't in our notes but is in the revision questions handed out so please don't delete this one!
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted