If you follow this course in sync with the live classes (September-December), then this chapter is your main content for week 9 of the fall term (see the due dates).

If you try to deform a crystal, it will fight back. To which extent and in which way it does so, is governed by its elastic properties. This week, we will examine how the elastic information can be expressed, and how DFT can predict this elastic information.

Going through this chapter (including the hands-on tasks ‘let’s play‘) will take you about 3 hours.