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Magneto-Plasmonic Nanoparticles

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TLDR
Magnetoplasmonic nanoparticles encompass in a single nano-entity all the rich science and promising applications of the plasmonics and magnetic nanoworlds as discussed by the authors, and they are excellent benchmark materials to develop and investigate multiresponsive multifunctional nanosystems that now are required in an increasing number of technologies, such as biomedicine, pharmacy, catalysis, optoelectronics and data storage.
Abstract
Magnetoplasmonics nanoparticles encompass in a single nano-entity all the rich science and promising applications of the plasmonics and magnetic nanoworlds. The difficult liaison and a certain incompatibility between plasmonics and magnetic phenomena, due to the different chemical-physical origins and supporting materials, are overcome thanks to the design and synthesis of novel nanostructures. The variations of properties, interactions and synergies of both phenomena and materials demonstrate how rich and surprising the matter is at nanoscale and the promising applications. In fact, we show how not only light and magnetism can interplay but also other phenomena like forces, heat, electric field and chemical interactions, between others, can show synergism. Magnetoplasmonic systems are excellent benchmark materials to develop and investigate multi-responsive multifunctional nanosystems that now are required in an increasing number of technologies, such as biomedicine, pharmacy, catalysis, optoelectronics and data storage.

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Journal Article

Surface-plasmon Opto-magnetic Field Enhancement for All-optical Magnetization Switching

TL;DR: In this paper, the authors use localized surface plasmon resonances to couple light to nanomagnets and achieve significantly higher opto-magnetic field values in comparison to free space light excitation.
Journal ArticleDOI

High Magnetic Field Magneto-optics on Plasmonic Silica-Embedded Silver Nanoparticles

TL;DR: In this article , a large magnetoplasmonic response of silver nanoparticles was demonstrated by performing magnetic circular dichroism spectroscopy at high magnetic fields, revealing a linear response to the magnetic field up to 30 T.
Journal ArticleDOI

Magnetic Circular Dichroism Responses with High Sensitivity and Enhanced Spectral Resolution in Multipolar Plasmonic Modes of Silver Nanoparticles with Dimensions between 90 and 200 nm.

TL;DR: In this paper, magnetic circular dichroism (MCD) spectroscopy was used to investigate magnetoplasmonic responses in higher-order multipolar (quadrupolar and octupolar) modes of Ag nanoparticles.
Journal Article

Impact of Core Dielectric Properties on the Localized Surface Plasmonic Spectra of Gold-Coated Magnetic Core–Shell Nanoparticles B

TL;DR: Extended Mie theory for multilayer particles is used to examine the individual effects of the real and imaginary components of core refractive indices on Au-shell NP plasmonic peaks and shows that the addition of a nonabsorbing polymer layer to the core surface decreases the dampening of the cavity plAsmon and increases LSPR spectral intensity.
References
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Journal ArticleDOI

Thermal Energy Dissipation by SiO2-Coated Plasmonic-Superparamagnetic Nanoparticles in Alternating Magnetic Fields

TL;DR: In this paper, hybrid plasmonic-magnetic Ag/Fe2O3 nanoparticles are made by flame aerosol technology, which can be in situ encapsulated with an amorphous nanothin SiO2 film to facilitate their dispersion and block any toxicity.
Journal ArticleDOI

Strong circular dichroism of core-shell magnetoplasmonic nanoparticles

TL;DR: In this paper, the authors developed a rigorous method for an accurate description of electromagnetic scattering by a gyrotropic sphere coated with a nongyrotropically concentric spherical shell, based on the full multipole expansion of the wave field.
Journal ArticleDOI

Magnetooptical Response of Gold-Magnetite Nanocomposite Films

TL;DR: In this paper, the authors present experimental evidence of an enhanced magnetooptical response in chemically synthesized noble metal-magnetic oxide nanocomposites using a bifunctional organic ligand creating clusters of the two nanoparticle components.
Journal ArticleDOI

Exploring the synthesis conditions to control the morphology of gold-iron oxide heterostructures

TL;DR: In this paper, a seed-assisted method was used to synthesize gold-iron oxide nano-heterostructures with a clear and well-defined morphology via a seed assisted method, and the synthesis process and the events of heterogeneous nucleation during the decomposition of the iron precursor were carefully studied in order to understand the mechanism of the reaction and to tailor the architecture of the fabricated heterostructure.
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