The lattice constant of BaTiO3 is 3.99 A at room temperature with a relative displacement (discussed in the text) of O ions of 0.03 A. Draw the position of atoms in a BaTiO 3 cell. A GaAs film is...

The lattice constant of BaTiO3 is 3.99 A at room temperature with a relative displacement (discussed in the text) of O ions of 0.03 A. Draw the position of atoms in a BaTiO₃
cell.

A GaAs film is grown on a glass substrate and heat treated to produce a polycrystalline film of grain size 10.0 /im. If a 2 /j,m x2 //m diode is fabricated on the film, what is the probability that the device has high performance? Assume that the grain size is square on the surface.