Pathways for Single-Shot All-Optical Switching of Magnetization in Ferrimagnets
| العنوان: | Pathways for Single-Shot All-Optical Switching of Magnetization in Ferrimagnets |
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| المؤلفون: | Arata Tsukamoto, T. Janssen, C. S. Davies, Andrzej Stupakiewicz, Andrei Kirilyuk, Alexey Kimel, A.F.G. van der Meer, J.H. Mentink |
| المصدر: | Physical Review Applied, 13, 2 Physical Review Applied, 13 Physical Review Applied |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, FELIX Condensed Matter Physics, Femto, Process (computing), General Physics and Astronomy, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Magnetization, All optical, Reliability (semiconductor), Ferrimagnetism, Spectroscopy of Solids and Interfaces, 0103 physical sciences, Limit (music), Thermal, Statistical physics, 010306 general physics, 0210 nano-technology, FELIX Fel Technology |
| الوصف: | We resolve a significant controversy about how to understand and engineer single-shot all-optical switching of magnetization in ferrimagnets using femto- or picosecond-long heat pulses. By realistically modelling a generic ferrimagnet as two coupled macrospins, we comprehensively show that the net magnetization can be reversed via different pathways, using a heat pulse with duration spanning all relevant timescales within the non-adiabatic limit. This conceptual understanding is fully validated by experiments studying the material and optical limits at which the switching process in GdFeCo alloys loses its reliability. Our interpretation and results constitute a blueprint for understanding how deterministic all-optical switching can be achieved in alternative ferrimagnets using short thermal pulses. |
| وصف الملف: | application/pdf |
| تدمد: | 2331-7019 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::526cf0801c80101ea6ed4b28c74569f2 https://hdl.handle.net/2066/219081 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....526cf0801c80101ea6ed4b28c74569f2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23317019 |
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