What question did this study set out to answer?

To elucidate the microscopic mechanisms governing all-optical magnetization switching induced by single femtosecond laser pulses in synthetic-ferrimagnetic multilayers compared to ferrimagnetic alloys.

December 26, 2019Physical review. B./Physical review. BOpen Access

Comparing all-optical switching in synthetic-ferrimagnetic multilayers and alloys

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Authors

MBM. BeensEindhoven University of Technology MLM. L. M. LalieuEindhoven University of Technology ADAxel J. M. DeenenÉcole Polytechnique Fédérale de Lausanne

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Implication

Ultrafast optical investigation reveals all-optical switching in synthetic-ferrimagnetic multilayers without compensation temperature, highlighting interface-driven exchange scattering.

Key Points

To elucidate the microscopic mechanisms governing all-optical magnetization switching induced by single femtosecond laser pulses in synthetic-ferrimagnetic multilayers compared to ferrimagnetic alloys.
Tested single femtosecond laser pulse switching in Pt/Co/[Ni/Co]N/Gd synthetic-ferrimagnetic multilayers across various layer configurations.
Simulated laser-induced ultrafast magnetization dynamics using an extended microscopic three-temperature model that accounts for multiple magnetic sublattices and exchange scattering.
Demonstrated experimental all-optical switching in Pt/Co/[Ni/Co]N/Gd multilayers in the complete absence of a magnetization compensation temperature.
Showed theoretically and experimentally that Co/Gd bilayers switch far from magnetic moment compensation via a reversed Co magnetization front that nucleates at the interface and propagates through exchange scattering.

Cite This Study

Beens et al. (2019) studied this question.

synapsesocial.com/papers/69dd5d247808b00a4799d231 https://doi.org/10.1103/physrevb.100.220409

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Implication

Ultrafast optical investigation reveals all-optical switching in synthetic-ferrimagnetic multilayers without compensation temperature, highlighting interface-driven exchange scattering.

Comparing all-optical switching in synthetic-ferrimagnetic multilayers and alloys

Discussion

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Implication

Key Points

Cite This Study

Comparing all-optical switching in synthetic-ferrimagnetic multilayers and alloys

Discussion

Member takes

Implication

Key Points

Cite This Study

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