- #1
Robbas
- 2
- 0
Hi, I just can't understand the basics with BZ.
How do I find the shortest distance to the BZ boundary, how do I compare the electron energy between the last electron in the 1st BZ with the first electron in the 2nd BZ?
I think I need a visual how to calculate these things, does anyone know any good site with illustrations?
Here's an example:
Q: For what minimum electron concentration Z does the free electron Fermi sphere touch the first Brillouin zone boundary of a BCC metal?
A: Calculating the primitive reciprocal lattice vectors b_i of BCC we find the shortest distance to the BZ boundary |b_i|/2 = √2(π/a).
How do I know the shortest distance is |b_i|/2? From here I know how to finish.
If someone could show me some examples how to solve these types of questions I would be grateful!
Sorry for any grammatic errors, English is not my native language.
How do I find the shortest distance to the BZ boundary, how do I compare the electron energy between the last electron in the 1st BZ with the first electron in the 2nd BZ?
I think I need a visual how to calculate these things, does anyone know any good site with illustrations?
Here's an example:
Q: For what minimum electron concentration Z does the free electron Fermi sphere touch the first Brillouin zone boundary of a BCC metal?
A: Calculating the primitive reciprocal lattice vectors b_i of BCC we find the shortest distance to the BZ boundary |b_i|/2 = √2(π/a).
How do I know the shortest distance is |b_i|/2? From here I know how to finish.
If someone could show me some examples how to solve these types of questions I would be grateful!
Sorry for any grammatic errors, English is not my native language.