Imaging and manipulating effective ferromagnetism in a shaken optical

Recentely, we have developed a powerful lattice shaking technique to introduce long-range itinerant ferromagnetic order in cold atomic gases, using only one atomic internal state[1]. By using near-resonant lattice shaking we can engineer a band with two minima, which we label as spin-up and spin-down. Here we extend this technique to shaking in two directions. The resulting band has four minima and thus permits four types of domains, allowing for new possibilities such as ``Y'' or ``X'' type boundaries. I will discuss the prospects for mapping this domain structure, as well as for using a superlattice to manipulate domains.