ArticleNanoscale2021
Ultrafast demagnetization in a ferrimagnet under electromagnetic field funneling.
Article in Nanoscale, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- Spatiotemporal observation of surface plasmon polariton mediated ultrafast demagnetization.Nature communications · 2025Article
- Coupled atomistic spin-lattice simulations of ultrafast demagnetization in 3d ferromagnets.Scientific reports · 2024Article
- A chiral inverse Faraday effect mediated by an inversely designed plasmonic antenna.Nanophotonics (Berlin, Germany) · 2023Article
- Multiphysics Modeling of Plasmon-Enhanced All-Optical Helicity-Dependent Switching.ACS photonics · 2023Article
- Ultrafast Demagnetization Control in Magnetophotonic Surface Crystals.Nano letters · 2022Article
- Nanophotonic devices based on magneto-optical materials: recent developments and applications.Nanophotonics (Berlin, Germany) · 2022Review
- Spatially selective excitation of spin dynamics in magneto-photonic crystals by spectrally tunable ultrashort laser pulses.Nanophotonics (Berlin, Germany) · 2022Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The quest to improve the density, speed and energy efficiency of magnetic memory storage has led to the exploration of new ways of optically manipulating magnetism at the ultrafast time scale, in particular in ferrimagnetic alloys. While all-optical magnetization switching is well-established on the femtosecond timescale, lateral nanoscale confinement and thus the potential significant reduction of the size of the magnetic element remains an outstanding challenge. Here we employ resonant electromagnetic energy funneling through plasmon nanoantennas to influence the demagnetization dynamics of a ferrimagnetic TbCo alloy thin film. We demonstrate how Ag nanoring-shaped antennas under resonant optical femtosecond pumping reduce the overall demagnetization in the underlying films up to three times compared to non-resonant illumination. We attribute such a substantial reduction to the nanoscale confinement of the demagnetization process. This is qualitatively supported by the electromagnetic simulations that strongly evidence the resonant optical energy-funneling to the nanoscale from the nanoantennas into the ferrimagnetic film. This observation is an important step for reaching deterministic ultrafast all-optical magnetization switching at the nanoscale in such systems, opening a route to develop nanoscale ultrafast magneto-optics.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.