119 citations · 616 across the 22 of their papers we have counts for
11 papers · 1 filter
Exciton-induced magnons carrying orbital angular momentum in CrI3
Martin Pavelka, Vishal Shokeen, Ruslan Chulkov +15
Magnons are collective spin excitations that contain and transport spin angular momentum in magnetic materials. It has been suggested that they can also carry orbital angular momen…
Femtosecond charge and spin dynamics in CoPt alloys
Martin Pavelka, Simon Marotzke, Ru-Pan Wang +19
The use of advanced X-ray sources plays a key role in the study of dynamic processes in magnetically ordered materials. The progress in X-ray free electron lasers enables the direc…
Element-specific ultrafast lattice dynamics in FePt nanoparticles
Diego Turenne, Igor Vaskivskiy, Klaus Sokolowski-Tinten +14
Light-matter interaction at the nanoscale in magnetic alloys and heterostructures is a topic of intense research in view of potential applications in high-density magnetic recordin…
Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub-100 fs timescales
Sinéad A. Ryan, Peter C. Johnsen, Mohamed F. Elhanoty +10
The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient devices. However, distinguishing the microscopic processes that can occur during ult…
The interplay of local electron correlations and ultrafast spin dynamics in fcc Ni
Tobias Lojewski, Mohamed F. Elhanoty, Loïc Le Guyader +48
The complex electronic structure of metallic ferromagnets is determined by a balance between exchange interaction, electron hopping leading to band formation, and local Coulomb rep…
Element selective ultrafast magnetization dynamics of hybrid Stoner-Heisenberg magnets
Mohamed F. Elhanoty, Olle Eriksson, Ronny Knut +2
Stoner and Heisenberg excitations in magnetic materials are inherently different. The former involves an effective reduction of the exchange splitting, whereas the latter comprises…
Orientation before destruction. A multiscale molecular dynamics study
Anna Sinelnikova, Thomas Mandl, Harald Agélli +4
The emergence of ultra-fast X-ray free-electron lasers opens the possibility of imaging single molecules in the gas phase at atomic resolution. The main disadvantage of this imagin…
Tailoring the opto-electronic response of graphene nanoflakes by size and shape optimization
Raquel Esteban-Puyuelo, Rajat Kumar Sonkar, Bhalchandra Pujari +2
The long spin-diffusion length, spin-lifetimes and excellent optical absorption coefficient of graphene provide an excellent platform for building opto-electronic devices as well a…
A new first principles approach to calculate phonon spectra of disordered alloys
Oscar Grånäs, Biswanath Dutta, Subhradip Ghosh +1
The lattice dynamics in substitutional disordered alloys with constituents having large size differences is driven by strong disorder in masses, inter-atomic force constants and lo…
On the large magnetic anisotropy of Fe_{2}P
Marcio Costa, Oscar Grånäs, Anders Bergman +4
We present an investigation on the large magnetic anisotropy of Fe_{2}P, based on {\it Ab Initio} density-functional theory calculations, with a full potential linear muffin-tin or…
A route towards finding large magnetic anisotropy in nano-composites: application to a WRe/Fe multilayer
Sumanta Bhandary, Oscar Grånäs, Laszlo Szunyogh +3
We suggest here a novel nano-laminate, 5[Fe]/2[WRe] (x=0.6-0.8), with enhanced magnetic hardness in combination with a large saturation moment. The calculated magnetic…