K
K. M. Döbrich
Researcher at Free University of Berlin
Publications - 16
Citations - 807
K. M. Döbrich is an academic researcher from Free University of Berlin. The author has contributed to research in topics: Laser & Femtosecond. The author has an hindex of 12, co-authored 16 publications receiving 722 citations.
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Journal ArticleDOI
Rashba effect at magnetic metal surfaces
O. Krupin,Gustav Bihlmayer,Kai Starke,Serguei Gorovikov,José Emilio Prieto,K. M. Döbrich,Stefan Blügel,G. Kaindl +7 more
TL;DR: In this paper, a detailed account of the near-surface charge-density gradients that are responsible for the Rashba effect is given, and the experimental observations are quantitatively described by ab initio calculations.
Journal ArticleDOI
A femtosecond X-ray/optical cross-correlator
Cornelius Gahl,Armin Azima,Martin Beye,Martin H. Deppe,K. M. Döbrich,Urs Hasslinger,Franz Hennies,Franz Hennies,Alexej Melnikov,Mitsuru Nagasono,Annette Pietzsch,Martin Wolf,W. Wurth,Alexander Föhlisch +13 more
TL;DR: In this paper, the authors exploit the peak brilliance of the free-electron laser in Hamburg and establish X-ray- pulse-induced transient changes of the optical reflectivity in GaAs as a powerful tool for Xray/optical cross-correlation.
Journal ArticleDOI
Towards time resolved core level photoelectron spectroscopy with femtosecond x-ray free-electron lasers
Annette Pietzsch,Alexander Föhlisch,Martin Beye,Martin H. Deppe,F. Hennies,Mitsuru Nagasono,E. Suljoti,Wilfried Wurth,Cornelius Gahl,K. M. Döbrich,Alexey Melnikov +10 more
TL;DR: In this article, the femtosecond XUV pulses from the free-electron laser at Hamburg (FLASH) were used to perform core level photoelectron spectroscopy on a W(110) single crystal.
Journal ArticleDOI
A high-order harmonic generation apparatus for time- and angle-resolved photoelectron spectroscopy
Björn Frietsch,Robert Carley,K. M. Döbrich,Cornelius Gahl,M. Teichmann,Olaf Schwarzkopf,Ph. Wernet,Martin Weinelt +7 more
TL;DR: A table top setup for time- and angle-resolved photoelectron spectroscopy is presented to investigate band structure dynamics of correlated materials driven far from equilibrium by femtosecond laser pulse excitation.
Journal ArticleDOI
Femtosecond laser excitation drives ferromagnetic gadolinium out of magnetic equilibrium.
Robert Carley,K. M. Döbrich,Björn Frietsch,Cornelius Gahl,Martin Teichmann,Olaf Schwarzkopf,Philippe Wernet,Martin Weinelt +7 more
TL;DR: These findings demonstrate that laser excitation drives the valence band structure out of magnetic equilibrium.