| Literature DB >> 31633947 |
Toshiyuki Nishiyama1,2, Yoshiaki Kumagai3, Akinobu Niozu1,2, Hironobu Fukuzawa2,3, Koji Motomura3, Maximilian Bucher4, Yuta Ito3, Tsukasa Takanashi3, Kazuki Asa1,2, Yuhiro Sato1,2, Daehyun You3, Yiwen Li3, Taishi Ono3, Edwin Kukk5, Catalin Miron6,7, Liviu Neagu7,8, Carlo Callegari9, Michele Di Fraia9, Giorgio Rossi10, Davide E Galli10, Tommaso Pincelli10,11, Alessandro Colombo10, Takashi Kameshima12, Yasumasa Joti12, Takaki Hatsui2, Shigeki Owada2, Tetsuo Katayama12, Tadashi Togashi12, Kensuke Tono12, Makina Yabashi2, Kazuhiro Matsuda1, Christoph Bostedt4,13,14, Kiyonobu Nagaya1,2, Kiyoshi Ueda2,3.
Abstract
Femtosecond laser pulses have opened new frontiers for the study of ultrafast phase transitions and nonequilibrium states of matter. In this Letter, we report on structural dynamics in atomic clusters pumped with intense near-infrared (NIR) pulses into a nanoplasma state. Employing wide-angle scattering with intense femtosecond x-ray pulses from a free-electron laser source, we find that highly excited xenon nanoparticles retain their crystalline bulk structure and density in the inner core long after the driving NIR pulse. The observed emergence of structural disorder in the nanoplasma is consistent with a propagation from the surface to the inner core of the clusters.Entities:
Year: 2019 PMID： 31633947 DOI： 10.1103/PhysRevLett.123.123201
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161