- #1

cavalier3024

- 15

- 0

in 3d i can understand this. but when talking about a 2d lattice where the magnetic field is perpendicular to the lattice plane, what do i take as the extremal fermi surface cross section?

and another question, back to 3D - if i have several bands, each of them have different fermi surface, right? so i need to take the extremal cross section at each of them?