Question

3.2. Refer to Figures 3.3 and 3.4, which show the same arrangement of lattice points. The lattice constants a, b, and y are defined for the primitive cell in Figure 3.3. For the specific values of a, b, and y illustrated, the double cell shown in Figure 3.4 is a parallelogram cell. Find the relationship between a b, and y, defined for a conventional primitive cell, that ensures that it will be possible to define a double cell that is rectangular. Figure 3.3 Basis vectors t, and t2 lattice constants a and b, and interaxial angle yfor two-dimensional lattice. Note that t and t2 were chosen such that it, I

Answer 1

The answer is given in attachment .

2 t2 OriaIm