Manipulate atoms in your browser
In the game, we show how an electron beam scans across a simulated graphene sample line by line, revealing the locations of the carbon atoms that make up the lattice, as well as the brighter silicon impurities. Instead of imaging, we can also control the electron beam with a mouse and direct it at individual atoms, much as in the simulator above (although in reality, we have to stop scanning). By placing the beam on an atom next to an impurity, we can move silicon atoms within the lattice (see Background).
Patience is required for the game: it takes a few seconds until it can be seen whether the electron beam has actually moved an atom (in reality, it takes about 15 seconds on average). If you need instructions, please see the video below, and note that not every pattern can be realized in this way. Which pattern will you create?