*Paolo Milani¹ (1. Department of Physics, University of Milano (Italy))

*Arikasuci Fitonna Ridassepri¹, Yutaro Umejima¹, Jun Nakamura¹ (1. Department of Engineering Science, The University of Electro-Communications (UEC-Tokyo), 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan (Japan))

*Mai Thanh Nguyen¹, Tetsu Yonezawa¹ (1. Hokkaido University (Japan))

*Laszlo Ovari^1,2, Gábor Vári², Gyula Halasi^1,2, Csaba Vass¹, Krisztián Palotás², András Berkó², Zoltán Kónya^2,3 (1. Extreme Light Infrastructure - ALPS (Hungary), 2. ELKH-SZTE React. Kin. and Surf. Chem. Res. Gr. (Hungary), 3. Univ. of Szeged (Hungary))

*Mingbei Zhu¹, Mai Thanh Nguyen², Tetsu Yonezawa² (1. Graduate School of Engineering, Hokkaido University (Japan), 2. Faculty of Engineering, Hokkaido University (Japan))

*Kohei Aso¹, Jens Maebe², Xuan Quy Tran³, Tomokazu Yamamoto⁴, Yoshifumi Oshima¹, Syo Matsumura^3,4 (1. Japan Advanced Institute of Science and Technology (Japan), 2. Ghent University (Belgium), 3. Kyushu University (Japan), 4. The Ultramicroscopy Research Center (Japan))