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Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins
Ferromagnetic or antiferromagnetic spin ordering is governed by the exchange interaction, the strongest force in magnetism. Understanding spin dynamics in magnetic materials is an issue of crucial… Expand
Femtosecond modification of electron localization and transfer of angular momentum in nickel.
The rapidly increasing information density required of modern magnetic data storage devices raises the question of the fundamental limits in bit size and writing speed. At present, the magnetization… Expand
Hot-electron-driven enhancement of spin-lattice coupling in Gd and Tb 4f ferromagnets observed by femtosecond x-ray magnetic circular dichroism.
- M. Wietstruk, A. Melnikov, +7 authors U. Bovensiepen
- Materials Science, Medicine
- Physical review letters
- 7 October 2010
Femtosecond x-ray magnetic circular dichroism was used to study the time-dependent magnetic moment of 4f electrons in the ferromagnets Gd and Tb, which are known for their different spin-lattice… Expand
Distinguishing the ultrafast dynamics of spin and orbital moments in solids
For an isolated quantum particle, such as an electron, the orbital (L) and spin (S) magnetic moments can change provided that the total angular momentum of the particle is conserved. In condensed… Expand
Femtosecond electron and spin dynamics in Ni/W(110) films.
The collapse of the magnetic exchange splitting in 7 monolayer thick epitaxial Ni/W(110) films following a femtosecond laser pulse was measured using time-resolved photoemission spectroscopy.… Expand
Detailed characterization of electron sources yielding first demonstration of European X-ray Free-Electron Laser beam quality
The photoinjector test facility at DESY, Zeuthen site (PITZ), was built to develop and optimize photoelectron sources for superconducting linacs for high-brilliance, short-wavelength free-electron… Expand
Control of the metal-insulator transition in vanadium dioxide by modifying orbital occupancy
Bulk vanadium dioxide undergoes a metal–insulator transition near room temperature. It is now shown that by putting a thin layer of vanadium dioxide on a buffer, and varying the buffer’s thickness,… Expand
Interface-Induced Phenomena in Magnetism.
This article reviews static and dynamic interfacial effects in magnetism, focusing on interfacially-driven magnetic effects and phenomena associated with spin-orbit coupling and intrinsic symmetry… Expand
THz-Driven Ultrafast Spin-Lattice Scattering in Amorphous Metallic Ferromagnets.
- S. Bonetti, M. Hoffmann, +5 authors H. Dürr
- Materials Science, Physics
- Physical review letters
- 14 April 2016
We use single-cycle THz fields and the femtosecond magneto-optical Kerr effect to, respectively, excite and probe the magnetization dynamics in two thin-film ferromagnets with different lattice… Expand
Femtosecond single-shot imaging of nanoscale ferromagnetic order in Co/Pd multilayers using resonant x-ray holography.
We present the first single-shot images of ferromagnetic, nanoscale spin order taken with femtosecond x-ray pulses. X-ray-induced electron and spin dynamics can be outrun with pulses shorter than 80… Expand