Quantum plasmon and Rashba-like spin splitting in self-assembled CoxC60 composites with enhanced Co content (x > 15)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00488726" target="_blank" >RIV/61389005:_____/18:00488726 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00488726
Result on the web
<a href="http://dx.doi.org/10.1088/1361-6528/aaaa7a" target="_blank" >http://dx.doi.org/10.1088/1361-6528/aaaa7a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6528/aaaa7a" target="_blank" >10.1088/1361-6528/aaaa7a</a>

Result language
angličtina
Original language name
Quantum plasmon and Rashba-like spin splitting in self-assembled CoxC60 composites with enhanced Co content (x > 15)
Original language description
Driving by interplay between plasmonic and magnetic effects in organic composite semiconductors is a challenging task with a huge potential for practical applications. Here, we present evidence of a quantum plasmon excited in the self-assembled CoxC60 nanocomposite films with x > 15 (interval of the Co cluster coalescence) and analyse it using the optical absorption (OA) spectra. In the case of CoxC60 film with x = 16 (LF sample), the quantum plasmon generated by the Co/CoO clusters is found as the 1.5 eV-centred OA peak. This finding is supported by the establishment of four specific C-60-related OA lines detected at the photon energies E-p > 2.5 eV. Increase of the Co content up to x = 29 (HF sample) leads to pronounced enhancement of OA intensity in the energy range of E-p > 2.5 eV and to plasmonic peak downshift of 0.2 eV with respect to the peak position in the LF spectrum. Four pairs of the OA peaks evaluated in the HF spectrum at E-p > 2.5 eV reflect splitting of the C-60-related lines, suggesting great change in the microscopic conditions with increasing x. Analysis of the film nanostructure and the plasmon-induced conditions allows us to propose a Rashba-like spin splitting effect that suggests valuable sources for spin polarization.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
21001 - Nano-materials (production and properties)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)