Publications by authors named "Niko Pontius"

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Tuning ultrafast demagnetization with ultrashort spin polarized currents in multi-sublattice ferrimagnets.
Deeksha Gupta, Maryna Pankratova, Matthias Riepp, Manuel Pereiro, Biplab Sanyal, Niko Pontius

Nat Commun· March 2025

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Femtosecond charge and spin dynamics in a CoPt alloy.
Martin Pavelka, Simon Marotzke, Ru-Pan Wang, Mohamed F Elhanoty, Günter Brenner, Niko Pontius

Struct Dyn· March 2025

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Optical control of 4 orbital state in rare-earth metals.
Nele Thielemann-Kühn, Tim Amrhein, Wibke Bronsch, Somnath Jana, Niko Pontius

Sci Adv· April 2024

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Using the photoinduced resonance shift in Fe and Ni as time reference for ultrafast experiments at low flux soft x-ray sources.
Somnath Jana, Shreyas Muralidhar, Johan Åkerman, Christian Schüßler-Langeheine, Niko Pontius

Struct Dyn· July 2021

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Ultrafast and Energy-Efficient Quenching of Spin Order: Antiferromagnetism Beats Ferromagnetism.
Nele Thielemann-Kühn, Daniel Schick, Niko Pontius, Christoph Trabant, Rolf Mitzner

Phys Rev Lett· November 2017

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Influence of the pump pulse wavelength on the ultrafast demagnetization of Gd(0 0 0 1) thin films.
Kamil Bobowski, Markus Gleich, Niko Pontius, Christian Schüßler-Langeheine, Christoph Trabant

J Phys Condens Matter· June 2017

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Versatile soft X-ray-optical cross-correlator for ultrafast applications.
Daniel Schick, Sebastian Eckert, Niko Pontius, Rolf Mitzner, Alexander Föhlisch

Struct Dyn· September 2016

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Analysis of the halo background in femtosecond slicing experiments.
Daniel Schick, Loïc Le Guyader, Niko Pontius, Ilie Radu, Torsten Kachel

J Synchrotron Radiat· May 2016

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FemtoSpeX: a versatile optical pump-soft X-ray probe facility with 100 fs X-ray pulses of variable polarization.
Karsten Holldack, Johannes Bahrdt, Andreas Balzer, Uwe Bovensiepen, Maria Brzhezinskaya, Niko Pontius

J Synchrotron Radiat· September 2014

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A novel monochromator for experiments with ultrashort X-ray pulses.
Maria Brzhezinskaya, Alexander Firsov, Karsten Holldack, Torsten Kachel, Rolf Mitzner, Niko Pontius

J Synchrotron Radiat· July 2013

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Hot-electron-driven enhancement of spin-lattice coupling in Gd and Tb 4f ferromagnets observed by femtosecond x-ray magnetic circular dichroism.
Marko Wietstruk, Alexey Melnikov, Christian Stamm, Torsten Kachel, Niko Pontius

Phys Rev Lett· March 2011

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Metal-to-ligand and ligand-to-metal charge transfer in thin films of Prussian blue analogues investigated by X-ray absorption spectroscopy.
Sébastien Bonhommeau, Niko Pontius, Saioa Cobo, Lionel Salmon, Frank M F de Groot

Phys Chem Chem Phys· October 2008

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Femtosecond microscopy of surface plasmon polariton wave packet evolution at the silver/vacuum interface.
Atsushi Kubo, Niko Pontius, Hrvoje Petek

Nano Lett· February 2007

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