Question: and Sketch the E vs. k dispersion relation for a two-dimensional, square lattice of pr and pay attention to o and r interactions. Assume

and Sketch the E vs. k dispersion relation for a two-dimensional, square

and Sketch the E vs. k dispersion relation for a two-dimensional, square lattice of pr and pay attention to o and r interactions. Assume that x and y lie in the plane of the lattice. The points defining the Brillouin zone boundaries are r(0, 0), X(T/a, 0), Y (0, T/a), and M(T/a, T/a). Sketch the densities of state alongside. For full credit, the relative energies and relative dispersions must be consistent. Py orbitals,

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