期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.267403
关键词
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资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-76SF00515]
- German Federal Ministry for Education and Research [BMBF-05K10KTB]
- DFG [SFB925]
- Excellence cluster Frontiers in Quantum Photon Science
- ETH Zurich
- CNRS via the PEPS SASELEX (Soutien aux activites scientifiques francaises autour des lasers a electrons libres emettant des rayons X)
- FCT, Portuguese Foundation for Science and Technology
- LCLS
- Stanford University through SIMES
- Lawrence Berkeley National Laboratory (LBNL)
- University of Hamburg through the BMBF priority program [FSP 301]
- Center for Free Electron Laser Science (CFEL)
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 of5 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.
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