Optical transitions and electronic interactions in self-assembled cobalt-fullerene mixture films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00482524" target="_blank" >RIV/61389005:_____/17:00482524 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/17:00482524

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1361-6463/aa92ae" target="_blank" >http://dx.doi.org/10.1088/1361-6463/aa92ae</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6463/aa92ae" target="_blank" >10.1088/1361-6463/aa92ae</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical transitions and electronic interactions in self-assembled cobalt-fullerene mixture films

Popis výsledku v původním jazyce

Optical spectra of CoxC60 mixture films (x < 10) were studied in order to obtain insights into electronic interactions in an organometallic system that is attractive for spin-transfer electronics. The optical absorption (OA) spectra were described in terms of the Lorentz oscillators model, allowing the quantification of the spectral variations driven by Co concentration x. The variations are found to be most pronounced for 0 < x < 2-4, suggesting the effects of the electronic interactions in the Co2C60 fulleride formed in the mixture. The Co-C-60 electronic interactions evidenced by the OA edge shift and by the OA peak detected at approximately 1 eV give rise to the Jahn-Teller (JT) splitting of the t(1u) electronic levels in C-60 occupied by the electrons transferred from Co. The JT effect was confirmed by observation of the downshifted T-1u(4) infrared-active mode modified by electron-phonon coupling at the t(1u) levels.

Název v anglickém jazyce

Optical transitions and electronic interactions in self-assembled cobalt-fullerene mixture films

Popis výsledku anglicky

Optical spectra of CoxC60 mixture films (x < 10) were studied in order to obtain insights into electronic interactions in an organometallic system that is attractive for spin-transfer electronics. The optical absorption (OA) spectra were described in terms of the Lorentz oscillators model, allowing the quantification of the spectral variations driven by Co concentration x. The variations are found to be most pronounced for 0 < x < 2-4, suggesting the effects of the electronic interactions in the Co2C60 fulleride formed in the mixture. The Co-C-60 electronic interactions evidenced by the OA edge shift and by the OA peak detected at approximately 1 eV give rise to the Jahn-Teller (JT) splitting of the t(1u) electronic levels in C-60 occupied by the electrons transferred from Co. The JT effect was confirmed by observation of the downshifted T-1u(4) infrared-active mode modified by electron-phonon coupling at the t(1u) levels.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Physics D-Applied Physics

ISSN

0022-3727

e-ISSN

—

Svazek periodika

50

Číslo periodika v rámci svazku

48

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000415641300001

EID výsledku v databázi Scopus

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