Apl. Prof. Dr. Christoph Hugenschmidt


Physics with positrons

Academic Career and Research Areas

Prof. Hugenschmidt (* 1969) deals with the application of positrons in materials science and solid-state physics as well as for fundamental experiments. The main focus of his work is the development of bright positron beams and novel experimental techniques. Examples are the analysis of surfaces and crystal defects on an atomic scale, the 3D imaging of defect distributions with a scanning positron microbeam, spin-resolved measurements of the electronic structure of solids and fundamental research on leptonic systems.

Prof. Hugenschmidt studied physics at the Universities of Freiburg and Bonn. After his doctorate (1997) he came to TUM, where he developed the intensive positron source at the FRM II and established the research group Physics with Positrons. He spent research stays in Grenoble at the Institut Laue-Langevin and in Japan (Tsukuba and Kyoto). In 2019, Prof. Hugenschmidt was appointed as adjunct professor in experimental physics at TUM.


  • EU-Erasmus+ Teaching Grant at Australian National University (ANU), Australia (2020)
  • Award of the Japan Society for the Promotion of Science (JSPS) for a research stay in Japan (2014)
  • Award Silberne Ehrennadel der Technischen Universität München for supervising TUM scholars (2013)

M. Reiner, T. Gigl, R. Jany, G. Hammerl, C. Hugenschmidt. Impact of oxygen diffusion on superconductivity in YBa2Cu3O7−δ thin films studied by positron annihilation spectroscopy. Phys. Rev. B 97 (2018) 144503

T. Gigl, L. Beddrich, M. Dickmann, B. Rienäcker, M. Thalmayr, S. Vohburger, C. Hugenschmidt. Defect Imaging and Detection of Precipitates Using a New Scanning Positron Microbeam. New Journal of Physics 19 (2017) 123007.

C. Hugenschmidt. Positrons in Surface Physics (Invited Review Article). Surface Science Reports 71 (2016) 547–594.

J. Weber, A. Bauer, P. Böni, H. Ceeh, S. B. Dugdale, D. Ernsting, W. Kreuzpaintner, M. Leitner, C. Pfleiderer, C. Hugenschmidt. Spin-resolved Fermi surface of the localized ferromagnetic Heusler compound Cu2MnAl measured with spin-polarized positron annihilation. Phys. Rev. Lett., 115 (2015) 206404, “Editors' Suggestion”.

C. Hugenschmidt, C. Piochacz, M. Reiner, K. Schreckenbach. The NEPOMUC upgrade and advanced positron beam experiments. New J. Phys., 14 (2012) 055027.