Time-resolved resonant soft x-ray diffraction with free-electron lasers: Femtosecond dynamics across the Verwey transition in magnetite
Niko Pontius,Torsten Kachel,Christian Schüßler-Langeheine,William F. Schlotter,Martin Beye,F. Sorgenfrei,Chun Fu Chang,Alexander Föhlisch,W. Wurth,P. A. Metcalf,I. Leonov,Alexander Yaresko,Nikola Stojanovic,J. Martin Berglund,N. Guerassimova,S. Düsterer,Harald Redlin,Hermann A. Dürr +17 more
TLDR
In this paper, a time-resolved RSXD experiment from the prototypical correlated electron material magnetite using soft x-ray pulses from the free-electron laser FLASH in Hamburg is presented.Abstract:
Resonant soft x-ray diffraction (RSXD) with femtosecond (fs) time resolution is a powerful tool for disentangling the interplay between different degrees of freedom in strongly correlated electron materials. It allows addressing the coupling of particular degrees of freedom upon an external selective perturbation, e.g., by an optical or infrared laser pulse. Here, we report a time-resolved RSXD experiment from the prototypical correlated electron material magnetite using soft x-ray pulses from the free-electron laser FLASH in Hamburg. We observe ultrafast melting of the charge-orbital order leading to the formation of a transient phase, which has not been observed in equilibrium.read more
Citations
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Journal ArticleDOI
Resonant Elastic Soft X-Ray Scattering
TL;DR: This review provides an introduction to theRSXS technique, covers the progress in experimental equipment, and gives a survey on recent RSXS studies of ordering in correlated electron systems and at interfaces.
Journal ArticleDOI
Resonant elastic soft x-ray scattering
TL;DR: Resonant soft x-ray scattering (RSXS) offers a unique element, site and valence specific probe to study spatial modulations of charge, spin and orbital degrees of freedom in solids on the nanoscopic length scale.
Journal ArticleDOI
Short-wavelength free-electron laser sources and science: a review
E. A. Seddon,E. A. Seddon,E. A. Seddon,J. A. Clarke,J. A. Clarke,David Dunning,David Dunning,Claudio Masciovecchio,Christopher J. Milne,Fulvio Parmigiani,Fulvio Parmigiani,D Rugg,John C. H. Spence,N.R. Thompson,N.R. Thompson,Kiyoshi Ueda,Sam Vinko,Justin Wark,Wilfried Wurth +18 more
TL;DR: This review is focused on free-electron lasers (FELs) in the hard to soft x-ray regime and provides newcomers to the area with insights into: the basic physics of FELs, the qualities of the radiation they produce, the challenges of transmitting that radiation to end users and the diversity of current scientific applications.
Journal ArticleDOI
Speed limit of the insulator-metal transition in magnetite
S. de Jong,Roopali Kukreja,Roopali Kukreja,Christoph Trabant,Christoph Trabant,Christoph Trabant,Niko Pontius,Chun Fu Chang,Chun Fu Chang,Torsten Kachel,Martin Beye,F. Sorgenfrei,F. Sorgenfrei,Christian H. Back,Christian H. Back,Björn Bräuer,William F. Schlotter,Joshua J. Turner,Oleg Krupin,Oleg Krupin,M. Doehler,Diling Zhu,M. Hossain,Andreas Scherz,Andreas Scherz,Daniele Fausti,Daniele Fausti,Fabio Novelli,Martina Esposito,Martina Esposito,Wei-Sheng Lee,Yi-De Chuang,D. H. Lu,Robert G. Moore,Ming Yi,Mariano Trigo,Patrick S. Kirchmann,L. Pathey,Mark S. Golden,Mark S. Golden,M. Buchholz,P. A. Metcalf,Fulvio Parmigiani,Fulvio Parmigiani,Wilfried Wurth,Alexander Föhlisch,Alexander Föhlisch,Christian Schüßler-Langeheine,Christian Schüßler-Langeheine,Hermann A. Dürr +49 more
TL;DR: The Verwey transition is investigated with pump-probe X-ray diffraction and optical reflectivity techniques, and how trimerons become mobile across the insulator-metal transition is found to be a two-step process.
Journal ArticleDOI
10 years of pioneering X-ray science at the Free-Electron Laser FLASH at DESY
TL;DR: The Free-Electron Laser at DESY (FLASH) as discussed by the authors was the first FEL in the XUV/soft X-ray spectral range, and was for almost 5 years the only short wavelength FEL facility worldwide.
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TL;DR: In this paper, the performance of a free-electron laser operating at a wavelength of 13.7 nm where unprecedented peak and average powers for a coherent extreme-ultraviolet radiation source have been measured.
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The Verwey transition - a topical review
TL;DR: The story of the Verwey transition in magnetite over a period of about 90 years, from its discovery up to the present, can be subdivided into three eras as mentioned in this paper.
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Single-shot terahertz-field-driven X-ray streak camera
Ulrike Frühling,Marek Wieland,Michael Gensch,Michael Gensch,Thomas Gebert,Bernd Schütte,Maria Krikunova,Roland Kalms,Filip Budzyn,Oliver Grimm,Oliver Grimm,Jörg Rossbach,Elke Plönjes,Markus Drescher +13 more
TL;DR: In this article, a femtosecond X-ray streak camera with a pump-probe scheme was realized using a pump and probe scheme that samples the transient response of matter to ionizing soft X-rays radiation in the presence of an intense synchronized terahertz field.
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