Hole-like and electron-like Fermi surfaces in Fe square lattice band structure

[hominnimoh]

This is schematic band structure for the d_xz and d_yz orbitals using a 2D square Fe lattice. What is the location in the Brillouin zone of the hole-like Fermi surface and the electron-like Fermi surface?

 

[ZapperZ]

This is schematic band structure for the d_xz and d_yz orbitals using a 2D square Fe lattice. What is the location in the Brillouin zone of the hole-like Fermi surface and the electron-like Fermi surface?

Wow. It would be nice if you oriented the picture so that we don't have to crank our necks to look at it.

Question: where is the Fermi energy level in your sketch?

Zz.