Johannes Heydenreich
Johannes Heydenreich was a German physicist who researched on the applications of electron microscopy in solid state physics and materials science.
Education and career
Heydenreich was born in Plauen near Dresden. Heydenreich studied physics at the Pädagogische Hochschule "Karl Liebknecht" Potsdam from 1953 to 1958. In 1961, he was awarded a doctorate for his work on the visualization of surface defects of geometrical and electrical origin using a "straight-viewing" electron mirror under Johannes Picht. It was during this time that he met the physicist Heinz Bethge, with whom he had a lifelong friendship.In 1962, Heydenreich became deputy director of the Institute for Solid State Physics and Electron Microscopy of the Academy of Sciences of the GDR in Halle. In 1969, he completed his habilitation at the University of Halle and was appointed professor there in 1973. In 1975, he founded the International Center for Electron Microscopy at the IFE and headed it. The center is visited twice a year by scientists from all over the world. Heydenreich later served as director of the academy institute for many years, from which the Max Planck Institute for Microstructure Physics, the first Max Planck Institute in the new states, was founded in 1992. From 1992 to his retirement in 1995, Heydenreich worked as department director and managing director at the Max Planck Institute for Microstructure Physics. During this time, he was the only department director of the Max Planck Society who had worked as a scientist in a leading position in the former GDR.