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Deterministic all-optical switching of synthetic ferrimagnets using single femtosecond laser pulses
- Source :
- Physical Review B, 96(22):220411(R). American Physical Society
- Publication Year :
- 2017
-
Abstract
- We experimentally demonstrate single-pulse all-optical switching in Pt/Co/Gd stacks using linearly polarized laser pulses. This shows that thermal single-pulse switching is not limited to ferrimagnetic alloys, but is also possible in ferrimagnetic multilayers that are highly suitable for future applications due to easy fabrication and (interface) engineering. Moreover, it is shown that the threshold fluence needed for the optical switch strongly depends on the thickness of the Co layer, with a remarkable low threshold fluence of $\ensuremath{\approx}1.2$ mJ/${\mathrm{cm}}^{2}$ for a Co thickness of 0.8 nm. Lastly, helicity-dependent measurements showed no significant effect of the magnetic circular dichroism in these thin magnetic layers.
- Subjects :
- Fabrication
Materials science
Magnetic circular dichroism
Linear polarization
02 engineering and technology
021001 nanoscience & nanotechnology
Laser
01 natural sciences
Fluence
Optical switch
Molecular physics
law.invention
Condensed Matter::Materials Science
Ferrimagnetism
law
0103 physical sciences
Femtosecond
010306 general physics
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 24699950
- Volume :
- 96
- Issue :
- 22
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....9df13d88ebe148e4bb1fba085b26c742