Polarizability and magnetoplasmonic properties of magnetic general nanoellipsoids

Maccaferri, Nicolò (author): Nanomagnetism Group, CIC nanoGUNE Consolider, Donostia / San Sebastián, Spain

González-Díaz, Juan B. (author)

Bonetti, Stefano (author)

Berger, Andreas (author)

Kataja, Mikko (author)

van Dijken, Sebastiaan (author)

Nogués, Josep (author)

Bonanni, Valentina (author)

Pirzadeh, Zhaleh (author)

Dmitriev, Alexandre (author)

Åkerman, Johan (author)

Vavassori, Paolo (author)

(creator_code:org_t)

2013-04-12
2013
English.
In: Optics Express. - : Optica Publishing Group. - 1094-4087. ; 21:8, s. 9875-9889

Related links:: https://umu.diva-por... (primary) (Raw object); show more...; https://doi.org/10.1...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

An approach to compute the polarizability tensor of magnetic nanoparticles having general ellipsoidal shape is presented. We find a surprisingly excellent quantitative agreement between calculated and experimental magneto-optical spectra measured in the polar Kerr configuration from nickel nanodisks of large size (exceeding 100 nm) with circular and elliptical shape. In spite of its approximations and simplicity, the formalism presented here captures the essential physics of the interplay between magneto-optical activity and the plasmonic resonance of the individual particle. The results highlight the key role of the dynamic depolarization effects to account for the magneto-optical properties of plasmonic nanostructures.

By the author/editor: Maccaferri, Nico ...; González-Díaz, J ...; Bonetti, Stefano; Berger, Andreas; Kataja, Mikko; van Dijken, Seba ...; show more...; Nogués, Josep; Bonanni, Valenti ...; Pirzadeh, Zhaleh; Dmitriev, Alexan ...; Åkerman, Johan; Vavassori, Paolo; show less...

About the subject

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.