Helicity and field dependent magnetization dynamics of ferromagnetic Co/Pt multilayers | Zendy

Yu. Tsema | Zendy; Georgy Kichin | Zendy; Olav Hellwig | Zendy; V. Mehta | Zendy; A. V. Kimel | Zendy; A. Kirilyuk | Zendy; Th. Rasing | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Helicity and field dependent magnetization dynamics of ferromagnetic Co/Pt multilayers

Author(s) -

Yu. Tsema,

Georgy Kichin,

Olav Hellwig,

V. Mehta,

A. V. Kimel,

A. Kirilyuk,

Th. Rasing

Publication year - 2016

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4961246

Subject(s) - magnetization , demagnetizing field , magnetization dynamics , condensed matter physics , excitation , ferromagnetism , magnetic circular dichroism , kerr effect , materials science , helicity , magnetic field , physics , particle physics , astronomy , nonlinear system , spectral line , quantum mechanics

We present helicity and field dependent magnetization dynamics of ferromagnetic Co/Pt multilayers, suitable for all-optical helicity-dependent switching. Employing single-shot time-resolved magneto-optical Kerr effect imaging, our study demonstrates an ultra-fast quenching of the magnetization after a single 60 fs laser pulse excitation followed by a recovery. Full demagnetization occurs within 1 ps after laser excitation. The magnetization dynamics reveals a small helicity dependence caused by magnetic circular dichroism. When an external magnetic field is applied, a heat-assisted magnetization reversal occurs on a nanosecond time scale.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research