I am now constructing a crystal of theoretically finite size. Can I understand as that, for a triangular lattice, the positions of k points exactly form a "triangular lattice" too in the 1st BZ? Thanks a lot!
As it's said, the number of k point in a first Brillouin zone is determined by the number of lattice sites. For exmaple, a 2-d n by m square lattice, its 1st BZ contains m by n k values and I assume these k values are equally separated.
My question is that how the layout of k point in the 1st...
Hi, I've been working at a project on hign Tc superconductivity for a while. However, I found myself really need to gain some idea about the larger scope of this field. :confused:
Could anyone here recommend an article or a book that has a general summary for High Tc superconductivity...
The Density of States diagram gives gaps sometime. As I know, if the band is filled up to the gap, then the material is an insulator.
However, it seems to me, that superconductors also open a gap in their density of states diagram, as BCS theory says.
If my understanding is correct, I am a...