#3 A semiconductor has a band structure about the (100) plane with minimums in three

dimensions,kx, ky, k, and the energy equation is:/nA

B

E ≈ (E₁ − A − 2B) + 2a²k² + ½ ß² (k} + k²)

ħ²

d² Ed

Using m

/dk²

Find the effective mass along the (100) direction, or the x direction (5 points)

Find the effective mass in the y direction (5 points)

Find the effective mass in the z direction (5 points)