[17p-C4-2~9] 18.7 Laser Photonics－XFEL and ultrafast optics－

▲ [17p-C4-6] A Density Function Investigation of Excited-State effects due to Ultrafast Excitation in Ge₂Sb₂Te₅ Epitaxial Films

^〇Paul Fons^1,4，Kirill Mitrofanov^1,4，Kotaro Makino¹，Ryo Terashima²，Alexander Kolobov¹，Junji Tominaga¹，Alessandro Giussani³，Raffella Calarco³，Henning Riechert³，Tetsuo Katayama⁵ (Nanoelectronics Research Institute, AIST¹，Institute of Applied Physics, University of Tsukuba²，Paul-Drude-Institut fur Festkorperelektronik³，RIKEN SPring-8, XFEL Research and Development Division⁴，XFEL Project Head Office, Japan Synchrotron Radiation Research Institute⁵)

キーワード：density-functional theory,free-electron laser,lattice dynamics