State-of-the-art complementary experimental methods such as atomic resolution scanning and transmission electron microscopy and scattering with synchrotron radiation are applied. A Cs image-corrected transmission electron microscope (FEI Titan 80-300) and an aberration-corrected ultra-high vacuum scanning transmission electron microscope (Nion UltraSTEM 100) with versatile extensions for in-situ experiments are installed. In addition to its experimental know-how, the research group develops physical models to clarify the experimental results. The scientific expertise and the special research methods developed by the group are utilized to achieve micro/nanostructured materials and solid state quantum systems with tailored electronic, optical, mechanical, magnetic and thermoelectric properties.