1. Fraunhofer IWM, MikroTribologie Centrum μTC, Wöhlerstraße 11, 79108 Freiburg, Germany
2. Department of Mechanical Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, 558-8585 Osaka, Japan
3. Laboratory of Tribology and System Dynamics, CNRS, UMR5513, University of Lyon, Ecole Centrale de Lyon, 69130 Ecully, France
4. Institute of Physics, University of Freiburg, Hermann-Herder-Straße 3, 79104 Freiburg, Germany
5. Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Straße 21, 79104 Freiburg, Germany
6. Cluster of Excellence livMatS, Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany