Recently, Dr. Zi an Li visited Jia-Lab by Prof. Chun-Lin Jia and Prof. Shao-Bo Mi's invitation. Dr. Li take his postdoctoral research in University of Duisburg-Essen (Germany) and Forschungszentrum Jülich GmbH (Germany). His research areas include Quantitative Electron Holography and Lorentz Microscopy for Magnetic Nanostructured Materials.