54 citations · 287 across the 13 of their papers we have counts for
14 papers
Evidence for Conical Magnetic Structure in M-type BaFe12O19 Hexaferrite: A Combined Single-Crystal XMCD and Neutron Diffraction Study
Keshav Kumar, Shrawan K. Mishra, Sanjay Singh +5
The magnetic ground state of BaFe12O19 (BFO) was investigated using X-ray absorption at 1.2 K and 1.5 K, respectively. The XMCD measurements on single-crystals of BFO in grazing in…
Evidence for coexistence of spin-glass and ferrimagnetic phases in BaFe12O19 due to basal plane freezing
Keshav Kumar, Shrawan Kumar Mishra, Ivan Baev +2
We present here the results of low-temperature magnetization and X-ray magnetic circular dichroism studies on single crystals of BaFe12O19 which reveal for the first time the emerg…
Vibrationally Resolved Inner-Shell Photoexcitation of the Molecular Anion C
S. Schippers, P. -M. Hillenbrand, A. Perry-Sassmannshausen +6
Carbon core-hole excitation of the molecular anion C has been experimentally studied at high resolution by employing the photon-ion merged-beams technique at a synchrotr…
Climbing the N-shell resonance ladder of xenon
Steffen Palutke, Michael Martins, Stephan Klumpp +7
The dependency on the excitation energy of ultrafast multi-photon ionization of xenon by intense, short extreme ultraviolet pulses (XUV) was investigated in the vicinity of the 4$d…
Near K-Edge Photoionization and Photoabsorption of Singly, Doubly, and Triply Charged Silicon Ions
S. Schippers, S. Stock, T. Buhr +5
Experimental and theoretical results are presented for double, triple, and quadruple photoionization of Si and Si ions and for double photoionization of Si ions b…
Electronic Quantum Coherence in Glycine Molecules Probed with Ultrashort X-ray Pulses in Real Time
David Schwickert, Marco Ruberti, Přemys Kolorenč +25
Quantum coherence between electronic states of a photoionized molecule and the resulting process of ultrafast electron-hole migration have been put forward as a possible quantum me…
Near L-Edge Single and Multiple Photoionization of Doubly Charged Iron Ions
Stefan Schippers, Randolf Beerwerth, Sadia Bari +11
Using the photon-ion merged-beams technique at a synchrotron light source, we have measured relative cross sections for single and up to five-fold photoionization of Fe ions…
Magnetic ordering in metal-free radical thin films
Tobias Junghoefer, Ivan Baev, Mathias Glaser +11
Molecular systems are materials that intersect with many different promising fields such as organic/molecular electronics and spintronics, organic magnetism and quantum computing1-…
Near L-edge photoionization of triply charged iron ions
Randolf Beerwerth, Ticia Buhr, Alexander Perry-Saßmannshausen +12
Relative cross sections for -fold photoionization () of Fe by single photon absorption were measured employing the photon-ion merged-beams setup PIPE at the…
The photon-ion merged-beams experiment PIPE at PETRAIII - The first five years
S. Schippers, T. Buhr, A. Borovik +13
The Photon-Ion Spectrometer at PETRA III - in short, PIPE - is a permanently installed user facility at the "Variable Polarization XUV Beamline" P04 of the synchrotron light source…
Photoionization of metastable heliumlike C4+(1s 2s 3S1) ions: Precision study of intermediate doubly excited states
A. Müller, E. Lindroth, S. Bari +10
In a joint experimental and theoretical endeavour, photoionization of metastable C4+(1s 2s 3S1) ions via intermediate levels with hollow, double-K-vacancy configurations 2s2p, 2s3p…
Near-K-edge single, double, and triple photoionization of C+ ions
A. Müller, A. Borovik, T. Buhr +8
Single, double, and triple ionization of the C+ ion by a single photon have been investigated in the energy range 286 to 326 eV around the K-shell single-ionization threshold at an…
Near L-Edge Single and Multiple Photoionization of Singly Charged Iron Ions
Stefan Schippers, Michael Martins, Randolf Beerwerth +7
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 at the PETRA III synchrotron…
Non-collinear magnetism of Cr nanostructures on Fe/Cu(001): first--principles and experimental investigations
Samir Lounis, Matthias Reif, Phivos Mavropoulos +5
A combined experimental, using X-ray Magnetic Circular Dichroism and theoretical investigation, using full-potential Korringa-Kohn-Rostoker (KKR) Green function method, is carried…