Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays

Mikko Kataja; Francisco Freire-Fernández; Jorn P. Witteveen; Tommi K. Hakala; Päivi Törmä; Sebastiaan Van Dijken

doi:10.1063/1.5012857

Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays

Mikko Kataja, Francisco Freire-Fernández, Jorn P. Witteveen, Tommi K. Hakala, Päivi Törmä, Sebastiaan Van Dijken^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

20 Sitaatiot (Scopus)

234 Lataukset (Pure)

Abstrakti

We report on the manipulation of magnetization by femtosecond laser pulses in a periodic array of cylindrical nickel nanoparticles. By performing experiments at different wavelengths, we show that the excitation of collective surface plasmon resonances triggers demagnetization in zero field or magnetic switching in a small perpendicular field. Both magnetic effects are explained by plasmon-induced heating of the nickel nanoparticles to their Curie temperature. Model calculations confirm the strong correlation between the excitation of surface plasmon modes and laser-induced changes in magnetization.

Alkuperäiskieli	Englanti
Artikkeli	072406
Sivut	1-5
Julkaisu	Applied Physics Letters
Vuosikerta	112
Numero	7
DOI - pysyväislinkit	https://doi.org/10.1063/1.5012857
Tila	Julkaistu - 12 helmik. 2018
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1063/1.5012857

1.5012857Final published version, 995 KB

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title = "Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays",

abstract = "We report on the manipulation of magnetization by femtosecond laser pulses in a periodic array of cylindrical nickel nanoparticles. By performing experiments at different wavelengths, we show that the excitation of collective surface plasmon resonances triggers demagnetization in zero field or magnetic switching in a small perpendicular field. Both magnetic effects are explained by plasmon-induced heating of the nickel nanoparticles to their Curie temperature. Model calculations confirm the strong correlation between the excitation of surface plasmon modes and laser-induced changes in magnetization.",

author = "Mikko Kataja and Francisco Freire-Fern{\'a}ndez and Witteveen, {Jorn P.} and Hakala, {Tommi K.} and P{\"a}ivi T{\"o}rm{\"a} and {Van Dijken}, Sebastiaan",

note = "| openaire: EC/FP7/340748/EU//CODE ",

year = "2018",

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day = "12",

doi = "10.1063/1.5012857",

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journal = "Applied Physics Letters",

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T1 - Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays

AU - Kataja, Mikko

AU - Freire-Fernández, Francisco

AU - Witteveen, Jorn P.

AU - Hakala, Tommi K.

AU - Törmä, Päivi

AU - Van Dijken, Sebastiaan

N1 - | openaire: EC/FP7/340748/EU//CODE

PY - 2018/2/12

Y1 - 2018/2/12

N2 - We report on the manipulation of magnetization by femtosecond laser pulses in a periodic array of cylindrical nickel nanoparticles. By performing experiments at different wavelengths, we show that the excitation of collective surface plasmon resonances triggers demagnetization in zero field or magnetic switching in a small perpendicular field. Both magnetic effects are explained by plasmon-induced heating of the nickel nanoparticles to their Curie temperature. Model calculations confirm the strong correlation between the excitation of surface plasmon modes and laser-induced changes in magnetization.

AB - We report on the manipulation of magnetization by femtosecond laser pulses in a periodic array of cylindrical nickel nanoparticles. By performing experiments at different wavelengths, we show that the excitation of collective surface plasmon resonances triggers demagnetization in zero field or magnetic switching in a small perpendicular field. Both magnetic effects are explained by plasmon-induced heating of the nickel nanoparticles to their Curie temperature. Model calculations confirm the strong correlation between the excitation of surface plasmon modes and laser-induced changes in magnetization.

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U2 - 10.1063/1.5012857

DO - 10.1063/1.5012857

M3 - Article

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SN - 0003-6951

VL - 112

SP - 1

EP - 5

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 7

M1 - 072406

ER -

Plasmon-induced demagnetization and magnetic switching in nickel nanoparticle arrays

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