Stanislav Kamba 1, Filip Kadlec 1, Christelle Kadlec 1, Jakub Vít 1, Stella Skiadopoulou 1, Fedir Borodavka 1, Yi Sheng Chai 2, Martha Greenblatt 3
1 Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic, 2 Institute of Physics, Chinese Academy of Sciences, Beijing, China, 3 Rutgers, The State University of New Jersey, Piscataway, United States
