2024
DOI: 10.1088/1361-648x/ad5bae
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All-optical spin switching on an ultrafast time scale

Wolfgang Hübner,
Georgios Lefkidis,
G P Zhang

Abstract: Information technology revolution demands bigger and faster magnetic storage. All-optical spin switching (AOS) may offer a solution, where an ultrafast laser pulse alone can switch magnetization from one direction to another faithfully within 1–10 ps, free of a magnetic field. There are two types of switching: One is the helicity-dependent all-optical spin switching (HD-AOS) and the other the helicity-independent all-optical spin switching (HID-AOS). In a few alloys, one single laser pulse, with sufficient flu… Show more

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