All optical switching in transition metal synthetic ferrimagnetic multilayer systems with enhanced interlayer exchange coupling

Connor R. J. Sait, Maciej Dąbrowski, Jade N. Scott, William R. Hendren, David G. Newman, Alpha T. N’Diaye, Christoph Klewe, Padraic Shafer, Gerrit van der Laan, Paul S. Keatley, Robert M. Bowman, Robert J. Hicken

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nickel-platinum based synthetic ferrimagnets (SFi’s) offer a highly tunable system in which to study ultrafast all-optical control of magnetisation, without the requirement for rare earth materials. This study explores the behaviour of a transition metal SFi in which a [Ni/Pt] multilayer and a single Co layer, both of which possess perpendicular magnetic anisotropy (PMA), are antiferromagnetically coupled. Helicity-independent all-optical switching (AOS) between the two antiparallel magnetisation states (AP+ and AP-) is demonstrated. The tunability of the [Ni/Pt] layer allows the strength of the PMA to be increased and for AOS to be achieved at higher temperature than in SFis based on NiPt alloy layers.
Original languageEnglish
Title of host publication2023 IEEE International Magnetic Conference: Short Papers (INTERMAG Short Papers)
Number of pages2
ISBN (Electronic)9798350338362
DOIs
Publication statusPublished - 04 Sept 2023

Publication series

Name2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)
PublisherIEEE

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