Tobias Wolf

Postdoctoral Fellow

Physics

IRG 2

I am a postdoctoral researcher in the group of Prof. Allan MacDonald at the Center for Complex Quantum Systems. My research focuses on low-energy models and exotic observable signatures (e.g. in electronic spectra, local density of states, absorption spectra) in singlelayer, bilayer and few-layer materials (e.g. graphene, hBN, MoS2) and syntheticically engineered analogues thereof. These two-dimensional materials provide a natural platform for moiré superstructures by stacking layers with small twists. Such moiré lead to rare phenomena (e.g. fractal Landau-Hofstadter subband splitting, engineerable flat bands, ...) associated to the emergence of a new length scale (exceeding the microscopic lattice constants by an order of magnitude). I investigte effective models that capture the essential features of moiré structures to provide deeper understanding to complementary numerical studies.