Search Results - "Viefhaus, Jens"

Field-free deterministic ultrafast creation of magnetic skyrmions by spin–orbit torques by Büttner, Felix, Lemesh, Ivan, Schneider, Michael, Pfau, Bastian, Günther, Christian M., Hessing, Piet, Geilhufe, Jan, Caretta, Lucas, Engel, Dieter, Krüger, Benjamin, Viefhaus, Jens, Eisebitt, Stefan, Beach, Geoffrey S. D.

“…The deterministic nucleation of single skyrmions at a controlled position along multilayered magnetic racetracks is demonstrated by exploiting spin-orbit…”
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Near L-edge Single and Multiple Photoionization of Singly Charged Iron Ions by Schippers, Stefan, Martins, Michael, Beerwerth, Randolf, Bari, Sadia, Holste, Kristof, Schubert, Kaja, Viefhaus, Jens, Savin, Daniel Wolf, Fritzsche, Stephan, Müller, Alfred

“…Absolute cross-sections for m-fold photoionization ( m = 1 , ... , 6 ) of Fe+ by a single photon were measured employing the photon-ion merged-beams setup PIPE…”
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Automated spectrometer alignment via machine learning by Feuer-Forson, Peter, Hartmann, Gregor, Mitzner, Rolf, Baumgärtel, Peter, Weniger, Christian, Agåker, Marcus, Meier, David, Wernet, Phillipe, Viefhaus, Jens

“…During beam time at a research facility, alignment and optimization of instrumentation, such as spectrometers, is a time‐intensive task and often needs to be…”
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Quantitative ptychographic bio-imaging in the water window by Rose, Max, Senkbeil, Tobias, von Gundlach, Andreas R, Stuhr, Susan, Rumancev, Christoph, Dzhigaev, Dmitry, Besedin, Ilya, Skopintsev, Petr, Loetgering, Lars, Viefhaus, Jens, Rosenhahn, Axel, Vartanyants, Ivan A

“…Coherent X-ray ptychography is a tool for highly dose efficient lensless nano-imaging of biological samples. We have used partially coherent soft X-ray…”
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Unsupervised real-world knowledge extraction via disentangled variational autoencoders for photon diagnostics by Hartmann, Gregor, Goetzke, Gesa, Düsterer, Stefan, Feuer-Forson, Peter, Lever, Fabiano, Meier, David, Möller, Felix, Vera Ramirez, Luis, Guehr, Markus, Tiedtke, Kai, Viefhaus, Jens, Braune, Markus

“…We present real-world data processing on measured electron time-of-flight data via neural networks. Specifically, the use of disentangled variational…”
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Artificial intelligence for online characterization of ultrashort X-ray free-electron laser pulses by Dingel, Kristina, Otto, Thorsten, Marder, Lutz, Funke, Lars, Held, Arne, Savio, Sara, Hans, Andreas, Hartmann, Gregor, Meier, David, Viefhaus, Jens, Sick, Bernhard, Ehresmann, Arno, Ilchen, Markus, Helml, Wolfram

“…X-ray free-electron lasers (XFELs) as the world’s brightest light sources provide ultrashort X-ray pulses with a duration typically in the order of…”
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Direct 2D spatial-coherence determination using the Fourier-analysis method: multi-parameter characterization of the P04 beamline at PETRA III by Bagschik, Kai, Wagner, Jochen, Buß, Ralph, Riepp, Matthias, Philippi-Kobs, André, Müller, Leonard, Buck, Jens, Trinter, Florian, Scholz, Frank, Seltmann, Jörn, Hoesch, Moritz, Viefhaus, Jens, Grübel, Gerhard, Oepen, Hans Peter, Frömter, Robert

“…We present a systematic 2D spatial-coherence analysis of the soft-X-ray beamline P04 at PETRA III for various beamline configurations. The influence of two…”
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Commissioning of a photoelectron spectrometer for soft X‐ray photon diagnostics at the European XFEL by Laksman, Joakim, Buck, Jens, Glaser, Leif, Planas, Marc, Dietrich, Florian, Liu, Jia, Maltezopoulos, Theophilos, Scholz, Frank, Seltmann, Jörn, Hartmann, Gregor, Ilchen, Markus, Freund, Wolfgang, Kujala, Naresh, Viefhaus, Jens, Grünert, Jan

“…Commissioning and first operation of an angle‐resolved photoelectron spectrometer for non‐invasive shot‐to‐shot diagnostics at the European XFEL soft X‐ray…”
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Optimizing a superconducting radio-frequency gun using deep reinforcement learning by Meier, David, Ramirez, Luis Vera, Völker, Jens, Viefhaus, Jens, Sick, Bernhard, Hartmann, Gregor

“…Superconducting photoelectron injectors are promising for generating highly brilliant pulsed electron beams with high repetition rates and low emittances…”
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High‐resolution electron time‐of‐flight spectrometers for angle‐resolved measurements at the SQS Instrument at the European XFEL by De Fanis, Alberto, Ilchen, Markus, Achner, Alexander, Baumann, Thomas M., Boll, Rebecca, Buck, Jens, Danilevsky, Cyril, Esenov, Sergey, Erk, Benjamin, Grychtol, Patrik, Hartmann, Gregor, Liu, Jia, Mazza, Tommaso, Montaño, Jacobo, Music, Valerija, Ovcharenko, Yevheniy, Rennhack, Nils, Rivas, Daniel, Rolles, Daniel, Schmidt, Philipp, Sotoudi Namin, Hamed, Scholz, Frank, Viefhaus, Jens, Walter, Peter, Ziółkowski, Pawel, Zhang, Haiou, Meyer, Michael

“…A set of electron time‐of‐flight spectrometers for high‐resolution angle‐resolved spectroscopy was developed for the Small Quantum Systems (SQS) instrument at…”
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Charge-induced chemical dynamics in glycine probed with time-resolved Auger electron spectroscopy by Schwickert, David, Ruberti, Marco, Kolorenč, Přemysl, Przystawik, Andreas, Skruszewicz, Slawomir, Sumfleth, Malte, Braune, Markus, Bocklage, Lars, Carretero, Luis, Czwalinna, Marie Kristin, Diaman, Dian, Düsterer, Stefan, Kuhlmann, Marion, Palutke, Steffen, Röhlsberger, Ralf, Rönsch-Schulenburg, Juliane, Toleikis, Sven, Usenko, Sergey, Viefhaus, Jens, Vorobiov, Anton, Martins, Michael, Kip, Detlef, Averbukh, Vitali, Marangos, Jon P., Laarmann, Tim

“…In the present contribution, we use x-rays to monitor charge-induced chemical dynamics in the photoionized amino acid glycine with femtosecond time resolution…”
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Transmission zone plates as analyzers for efficient parallel 2D RIXS-mapping by Marschall, Felix, Yin, Zhong, Rehanek, Jens, Beye, Martin, Döring, Florian, Kubiček, Katharina, Raiser, Dirk, Veedu, Sreevidya Thekku, Buck, Jens, Rothkirch, André, Rösner, Benedikt, Guzenko, Vitaliy A., Viefhaus, Jens, David, Christian, Techert, Simone

“…We have implemented and successfully tested an off-axis transmission Fresnel zone plate as spectral analyzer for resonant inelastic X-ray scattering (RIXS)…”
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Localization and loss of coherence in molecular double-slit experiments by Heiser, Franz, Hentges, Rainer, Korica, Sanja, Rolles, Daniel, Geßner, Oliver, Becker, Uwe, Cvejanovic, Slobodan, Braune, Markus, Reinköster, Axel, Dörner, Reinhard, Lischke, Toralf, Viefhaus, Jens, Langer, Burkhard, Zimmermann, Björn, McKoy, Vincent

“…In molecular double-slit experiments, the interference between emitted core electrons of diatomic molecules gives rise to oscillations in the observed electron…”
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Isotope-induced partial localization of core electrons in the homonuclear molecule N2 by ROLLES, Daniel, BRAUNE, Markus, VIEFHAUS, Jens, ZIMMERMANN, Björn, MCKOY, Vincent, BECKER, Uwe, CVEJANOVIC, Slobodan, GESSNER, Oliver, HENTGES, Rainer, KORICA, Sanja, LANGER, Burkhard, LISCHKE, Toralf, PRÜMPER, Georg, REINKÖSTER, Axel

“…Because of inversion symmetry and particle exchange, all constituents of homonuclear diatomic molecules are in a quantum mechanically non-local coherent state;…”
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Scan-Free GEXRF in the Soft X-ray Range for the Investigation of Structured Nanosamples by Staeck, Steffen, Andrle, Anna, Hönicke, Philipp, Baumann, Jonas, Grötzsch, Daniel, Weser, Jan, Goetzke, Gesa, Jonas, Adrian, Kayser, Yves, Förste, Frank, Mantouvalou, Ioanna, Viefhaus, Jens, Soltwisch, Victor, Stiel, Holger, Beckhoff, Burkhard, Kanngießer, Birgit

“…Scan-free grazing-emission X-ray fluorescence spectroscopy (GEXRF) is an established technique for the investigation of the elemental depth-profiles of various…”
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Element-Specific Magnetization Dynamics of Complex Magnetic Systems Probed by Ultrafast Magneto-Optical Spectroscopy by von Korff Schmising, Clemens, Willems, Felix, Sharma, Sangeeta, Yao, Kelvin, Borchert, Martin, Hennecke, Martin, Schick, Daniel, Radu, Ilie, Strüber, Christian, Engel, Dieter W., Shokeen, Vishal, Buck, Jens, Bagschik, Kai, Viefhaus, Jens, Hartmann, Gregor, Manschwetus, Bastian, Grunewald, Soeren, Düsterer, Stefan, Jal, Emmanuelle, Vodungbo, Boris, Lüning, Jan, Eisebitt, Stefan

“…The vision to manipulate and control magnetism with light is driven on the one hand by fundamental questions of direct and indirect photon-spin interactions,…”
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Free electron laser polarization control with interfering crossed polarized fields by Ferrari, Eugenio, Roussel, Eléonore, Buck, Jens, Callegari, Carlo, Cucini, Riccardo, De Ninno, Giovanni, Diviacco, Bruno, Gauthier, David, Giannessi, Luca, Glaser, Leif, Hartmann, Gregor, Penco, Giuseppe, Scholz, Frank, Seltmann, Joern, Shevchuk, Ivan, Viefhaus, Jens, Zangrando, Marco, Allaria, Enrico Massimiliano

“…Free electron lasers emit powerful and coherent radiation in a wide wavelength range extending to hard x-rays. This radiation is also characterized by a high…”
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Direct Visualization of Spatial Inhomogeneity of Spin Stripes Order in La1.72Sr0.28NiO4 by Campi, Gaetano, Poccia, Nicola, Joseph, Boby, Bianconi, Antonio, Mishra, Shrawan, Lee, James, Roy, Sujoy, Nugroho, Agustinus Agung, Buchholz, Marcel, Braden, Markus, Trabant, Christoph, Zozulya, Alexey, Müller, Leonard, Viefhaus, Jens, Schüßler-Langeheine, Christian, Sprung, Michael, Ricci, Alessandro

“…In several strongly correlated electron systems, the short range ordering of defects, charge and local lattice distortions are found to show complex…”
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Polarization Characterization of Soft X-Ray Radiation at FERMI FEL-2 by Roussel, Eléonore, Allaria, Enrico, Callegari, Carlo, Coreno, Marcello, Cucini, Riccardo, Mitri, Simone, Diviacco, Bruno, Ferrari, Eugenio, Finetti, Paola, Gauthier, David, Penco, Giuseppe, Raimondi, Lorenzo, Svetina, Cristian, Zangrando, Marco, Beckmann, Andreas, Glaser, Leif, Hartmann, Gregor, Scholz, Frank, Seltmann, Joern, Shevchuk, Ivan, Viefhaus, Jens, Giannessi, Luca

“…The control of polarization state in soft and hard X-ray light is of crucial interest to probe structural and symmetry properties of matter. Thanks to their…”
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The Variable Polarization XUV Beamline P04 at PETRA III: Optics, mechanics and their performance by Viefhaus, Jens, Scholz, Frank, Deinert, Sascha, Glaser, Leif, Ilchen, Markus, Seltmann, Jörn, Walter, Peter, Siewert, Frank

“…The layout of the Variable Polarization XUV Beamline P04 at PETRA III is described with emphasis on selected examples of optics, mirrors and gratings. A…”
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