Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Drawing a reciprocal lattice, also basis

  1. Mar 7, 2016 #1
    Hey


    could anyone please explain how you go about drawing a reciprocal lattice? For example a 2d rectangular lattice to it's reciprocal form?

    Also... I don't know if this is correct but if you have a 2d rectangular lattice with lattice vectors L=n1a1 + n2a2

    would the reciprocal lattice vectors be G = h(2pi/a1) + k (2pi/a2) ???

    Another question I have is why do fcc's have 4 bases whereas a bcc only has 2? How would you go about calculating the bases vectors of any lattice?
     
  2. jcsd
  3. Mar 7, 2016 #2

    DrDu

    User Avatar
    Science Advisor

    I think any lattice can be spanned by only 3 (in 2-D 2) lattice vectors, independently whether the lattice is centered or not. Look for "primitive cell".
     
  4. Mar 7, 2016 #3

    DrDu

    User Avatar
    Science Advisor

    I think you are basically right, but you should be careful about vector notation. I.e. if a1 is a vector, then you can't form (2pi/a1).
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Drawing a reciprocal lattice, also basis
  1. Reciprocal lattice (Replies: 2)

  2. Reciprocal lattice? (Replies: 1)

  3. Reciprocal Lattice (Replies: 2)

  4. Reciprocal lattice (Replies: 7)

  5. Reciprocal lattice (Replies: 4)

Loading...