Write down the main characteristics of Fermi surface.Discuss ... | Filo

An electron of mass m moves in a square lattice of latticespacing a. The nearly free electron approximation applies.a) With one electron per site in the crystal, draw the Fermisurface on the kx, ky plane. Is this a metalor an insulator?b) With two electrons per site, draw the Fermi surface. Is thisa metal or an insulator?An electron of mass m moves in a square lattice of lattice spacing a. The nearly free-electron approximation applies. (a) With one electron per site in the crystal, draw the Fer