Deterministic all-optical switching of synthetic ferrimagnets using single femtosecond laser pulses

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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 ≈1.2 mJ/cm2 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.

Originele taal-2Engels
Artikelnummer220411(R)
Aantal pagina's5
TijdschriftPhysical Review B
Volume96
Nummer van het tijdschrift22
DOI's
StatusGepubliceerd - 26 dec 2017

Vingerafdruk

ferrimagnets
optical switching
Ultrashort pulses
Laser pulses
fluence
pulses
lasers
thresholds
Optical switches
Dichroism
dichroism
Multilayers
switches
engineering
Fabrication
fabrication

Citeer dit

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title = "Deterministic all-optical switching of synthetic ferrimagnets using single femtosecond laser pulses",
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 ≈1.2 mJ/cm2 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.",
author = "M.L.M. Lalieu and M.J.G. Peeters and S.R.R. Haenen and R. Lavrijsen and B. Koopmans",
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Deterministic all-optical switching of synthetic ferrimagnets using single femtosecond laser pulses. / Lalieu, M.L.M.; Peeters, M.J.G.; Haenen, S.R.R.; Lavrijsen, R.; Koopmans, B.

In: Physical Review B, Vol. 96, Nr. 22, 220411(R), 26.12.2017.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Deterministic all-optical switching of synthetic ferrimagnets using single femtosecond laser pulses

AU - Lalieu, M.L.M.

AU - Peeters, M.J.G.

AU - Haenen, S.R.R.

AU - Lavrijsen, R.

AU - Koopmans, B.

PY - 2017/12/26

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N2 - 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 ≈1.2 mJ/cm2 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.

AB - 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 ≈1.2 mJ/cm2 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.

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