1. NTNU Nanomechanical Lab Department of Structural Engineering Norwegian University of Science and Technology (NTNU) Trondheim 7491 Norway
2. National Synchrotron Radiation Lab CAS Key Laboratory of Soft Matter Chemistry Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film University of Science and Technology of China Hefei 230026 China
3. Department of Mechanical Engineering University of Colorado Boulder Boulder CO 80309 USA
4. Department of Mechanical Engineering and Science Kyoto University Kyotodaigaku Katsura Nishikyo‐ku Kyoto 6158540 Japan
5. Department of Physics Jiujiang Research Institute Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials Research Xiamen University Xiamen 361005 China
6. Central European Institute of Technology Brno University of Technology CEITEC BUT Purkyňova 123 Brno CZ‐612 00 Czech Republic