| Literature DB >> 23005013 |
Tianhan Wang1, Diling Zhu, Benny Wu, Catherine Graves, Stefan Schaffert, Torbjörn Rander, Leonard Müller, Boris Vodungbo, Cédric Baumier, David P Bernstein, Björn Bräuer, Vincent Cros, Sanne de Jong, Renaud Delaunay, Andreas Fognini, Roopali Kukreja, Sooheyong Lee, Víctor López-Flores, Jyoti Mohanty, Bastian Pfau, Horia Popescu, Maurizio Sacchi, Anna B Sardinha, Fausto Sirotti, Philippe Zeitoun, Marc Messerschmidt, Joshua J Turner, William F Schlotter, Olav Hellwig, Richard Mattana, Nicolas Jaouen, Franck Fortuna, Yves Acremann, Christian Gutt, Hermann A Dürr, Eric Beaurepaire, Christine Boeglin, Stefan Eisebitt, Gerhard Grübel, Jan Lüning, Joachim Stöhr, Andreas O Scherz.
Abstract
We present the first single-shot images of ferromagnetic, nanoscale spin order taken with femtosecond x-ray pulses. X-ray-induced electron and spin dynamics can be outrun with pulses shorter than 80 fs in the investigated fluence regime, and no permanent aftereffects in the samples are observed below a fluence of 25 mJ/cm(2). Employing resonant spatially muliplexed x-ray holography results in a low imaging threshold of 5 mJ/cm(2). Our results open new ways to combine ultrafast laser spectroscopy with sequential snapshot imaging on a single sample, generating a movie of excited state dynamics.Entities:
Year: 2012 PMID： 23005013 DOI： 10.1103/PhysRevLett.108.267403
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161