1. Fraunhofer IWM, MikroTribologie Centrum μTC, Wöhlerstraße 11, Freiburg 79108, Germany
2. Institute of Physics, University of Freiburg, Hermann-Herder-Straße 3, Freiburg 79104, Germany
3. Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2–4, Weinheim 69469, Germany
4. Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Straße 21, Freiburg 79104, Germany
5. Cluster of Excellence livMatS @ FIT─Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, Freiburg 79110, Germany