2021 Summer USTC CASTEP-MS Course 2nd Mid-Test

1. Is the refractive index of diamond higher than that of quartz ? Remember to apply scissors correction.

2. What experimental tool will you suggest to distiguish micro diamond or micro graphite nanocoating ? Use CASTEP result to demonstrate your idea.

3. What is the IR spectrum frequency of the wing flapping mode of a water molecule.

4. Estimate the sound speed of diamond.

5. Can single-layered Silicine lay flat ? Plase compute to prove your guess.