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Mn(Bi, Sb)2Te4, a family of MTMs with highly tunable properties, is an ideal playground for studying the interplay of band topology with magnetism. While previous work has focused on uniform ordered phases, here we ask: How can we control the electronic properties of Mn(Bi, Sb)2Te4 using the mesoscale structure of magnetism?

Dielectric materials play a critical role in determining the operating voltage in modern-day electronics. In particular, highly polarizable and ultrathin dielectrics enable low operating voltages and thus low power consumption.

LCMRC researchers have developed a method for manipulating particles by light without touching them by using liquid crystals as a light-controlled host fluid. The LC host reduces the illumination required by factors up to 10,000X relative to direct manipulation with optical tweezers, to the extent that lasers are no longer needed for many applications. LCMRC designed and synthesized photosensitive azobenzene monolayers control the LC orientation, which in turn moves the particles.

The Triangle MRSEC enjoys a vibrant ongoing partnership with German researchers supported through an International Graduate Research and Training Grant (IGRTG) from the DFG. A significant component of this partnership is extended graduate student exchanges. An example of funded projects is the fundamental modeling of particle gelation by molecular dynamics simulations by Prof. Sabine Klapp (Technical Univ. - Berlin), Carol Hall and Orlin Velev.