Gigantic plasmon resonance effects on magneto-optical activity of molecularly thin ferromagnets near gold surfaces

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10189347" target="_blank" >RIV/00216208:11320/13:10189347 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c3tc00952a" target="_blank" >http://dx.doi.org/10.1039/c3tc00952a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c3tc00952a" target="_blank" >10.1039/c3tc00952a</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gigantic plasmon resonance effects on magneto-optical activity of molecularly thin ferromagnets near gold surfaces

Popis výsledku v původním jazyce

We report on a new magneto-plasmonic material consisting of 1 nm thick ferromagnetic nanosheets and Au nanoparticles. The magnetooptical (MO) Kerr spectra of Ti0.8Co0.2O2 nanosheets near Au surfaces showed a gigantic MO response (similar to 10(6) deg cm(-1)) in the visible wavelength region (380-600 nm), not present in Ti0.8Co0.2O2 nanosheets on a bare glass substrate. The observed peaks correspond to intrinsic d-d* electronic transitions in Ti0.8Co0.2O2 and are consistent with the near-field enhancement of the MO response resulting from the spectral overlap of the surface-plasmon-resonance (SPR) in the Au surface with the electronic transitions in Ti0.8Co0.2O2. Similar SPR effects were also achieved in ferromagnetic nanosheet/Au with different compositions and with different separation distances (<5 nm). This demonstration of SPR-enhanced magneto-optics in the ferromagnetic/plasmonic nanosystem may enable designing of nanoarchitectures for miniaturized high-performance MO devices and

Název v anglickém jazyce

Gigantic plasmon resonance effects on magneto-optical activity of molecularly thin ferromagnets near gold surfaces

Popis výsledku anglicky

We report on a new magneto-plasmonic material consisting of 1 nm thick ferromagnetic nanosheets and Au nanoparticles. The magnetooptical (MO) Kerr spectra of Ti0.8Co0.2O2 nanosheets near Au surfaces showed a gigantic MO response (similar to 10(6) deg cm(-1)) in the visible wavelength region (380-600 nm), not present in Ti0.8Co0.2O2 nanosheets on a bare glass substrate. The observed peaks correspond to intrinsic d-d* electronic transitions in Ti0.8Co0.2O2 and are consistent with the near-field enhancement of the MO response resulting from the spectral overlap of the surface-plasmon-resonance (SPR) in the Au surface with the electronic transitions in Ti0.8Co0.2O2. Similar SPR effects were also achieved in ferromagnetic nanosheet/Au with different compositions and with different separation distances (<5 nm). This demonstration of SPR-enhanced magneto-optics in the ferromagnetic/plasmonic nanosystem may enable designing of nanoarchitectures for miniaturized high-performance MO devices and

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF MATERIALS CHEMISTRY C

ISSN

2050-7526

e-ISSN

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Svazek periodika

1

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

2520-2524

Kód UT WoS článku

000316121100002

EID výsledku v databázi Scopus

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