Contrasting magnetism in dilute and supersaturated cobalt-fullerene mixture films

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00448880" target="_blank" >RIV/68378271:_____/15:00448880 - isvavai.cz</a>

Alternative codes found

RIV/61389005:_____/15:00448880 RIV/44555601:13440/15:43886733

Result on the web

<a href="http://dx.doi.org/10.1088/0022-3727/48/33/335002" target="_blank" >http://dx.doi.org/10.1088/0022-3727/48/33/335002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0022-3727/48/33/335002" target="_blank" >10.1088/0022-3727/48/33/335002</a>

Result language

angličtina

Original language name

Contrasting magnetism in dilute and supersaturated cobalt-fullerene mixture films

Original language description

We assert a critical change in the mixture's organization yielding either the composite nanostructure as array of the Co/CoO core-shell nanoparticles (NPs) in the C-60-based matrix at a high content of Co (a supersaturated mixture or SSM) or a coexistence of fcc-C-60 and CoaC(60) fulleride when the Co content x is lower than some critical value x(c) (an ultradilute mixture or UDM). Magnetization of the SSM composite exhibits a superparamagnetic effect caused by the small Co/CoO NPs. Similar magnetization of the UDM with x = 0.7 revealed a stable ferromagnetism and evidenced the formation of a magnetic Co2C60 fulleride. Phase composition in the UDM and SSM films was verified with the XRD and Raman spectra. The UDM and SSM films reveal great difference in content of the remaining oxygen which implies easy diffusion of O-2 molecules within the C-60-based phases and their splitting at the Co NP surface followed by formation of CoO shells. The results obtained indicate controlled access to

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

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

Project

<a href="/en/project/GBP108%2F12%2FG108" target="_blank" >GBP108/12/G108: Preparation, modification and characterization of materials by radiation</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Journal of Physics D-Applied Physics

ISSN

0022-3727

e-ISSN

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Volume of the periodical

48

Issue of the periodical within the volume

33

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

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UT code for WoS article

000359276800003

EID of the result in the Scopus database

2-s2.0-84938844154