Back to Search
Start Over
Element-Specific Magnetization Dynamics of Complex Magnetic Systems Probed by Ultrafast Magneto-Optical Spectroscopy
- Source :
- Applied Sciences, Applied Sciences, MDPI, 2020, 10 (21), pp.7580. ⟨10.3390/app10217580⟩, Volume 10, Issue 21, Applied Sciences 10(21), 7580 (2020). doi:10.3390/app10217580, Applied Sciences, Vol 10, Iss 7580, p 7580 (2020)
- Publication Year :
- 2020
- Publisher :
- Uppsala universitet, FREIA, 2020.
-
Abstract
- 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, and on the other hand by the necessity to cope with ever growing data volumes, requiring radically new approaches on how to write, read and process information. Here, we present two complementary experimental geometries to access the element-specific magnetization dynamics of complex magnetic systems via ultrafast magneto-optical spectroscopy in the extreme ultraviolet spectral range. First, we employ linearly polarized radiation of a free electron laser facility to demonstrate decoupled dynamics of the two sublattices of an FeGd alloy, a prerequisite for all-optical magnetization switching. Second, we use circularly polarized radiation generated in a laboratory-based high harmonic generation setup to show optical inter-site spin transfer in a CoPt alloy, a mechanism which only very recently has been predicted to mediate ultrafast metamagnetic phase transitions.
- Subjects :
- Phase transition
Magnetism
02 engineering and technology
free electron laser
lcsh:Technology
01 natural sciences
7. Clean energy
lcsh:Chemistry
Magnetization
transient absorption spectroscopy
0103 physical sciences
High harmonic generation
General Materials Science
010306 general physics
Spectroscopy
lcsh:QH301-705.5
Instrumentation
ComputingMilieux_MISCELLANEOUS
Fluid Flow and Transfer Processes
Physics
Magnetization dynamics
Condensed matter physics
lcsh:T
Process Chemistry and Technology
General Engineering
Free-electron laser
021001 nanoscience & nanotechnology
Condensed Matter Physics
lcsh:QC1-999
high harmonic generation
Computer Science Applications
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
ultrafast demagnetization dynamics
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
ddc:600
Ultrashort pulse
Den kondenserade materiens fysik
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 20763417
- Database :
- OpenAIRE
- Journal :
- Applied Sciences, Applied Sciences, MDPI, 2020, 10 (21), pp.7580. ⟨10.3390/app10217580⟩, Volume 10, Issue 21, Applied Sciences 10(21), 7580 (2020). doi:10.3390/app10217580, Applied Sciences, Vol 10, Iss 7580, p 7580 (2020)
- Accession number :
- edsair.doi.dedup.....b365077a0e38060e842754768da13b9b