2) Zinc Oxide (ZnO) and Aluminum Nitride (AIN) crystalize in the wurtzite structure. Describe the crystal structure of ZnO and AlN as hexagonal lattices, with lattice constants a,c,u=3c/8, and with a basis of atoms. Write down the basis vectors using Cartesian coordinates and the specific values of a and c for ZnO and AIN. 2) Zinc Oxide (ZnO) and Aluminum Nitride (AIN) crystalize in the wurtzite structure. Describe the crystal structure of ZnO and AIN as hexagonal lattices, with lattice constants a,c,u=3c/8, and with a basis of atoms. Write down the basis vectors using Cartesian coordinates and the specific values of a and c for ZnO and AIN