Origin of high-coercivity in nanocomposites by single-precursor sol-gel method
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10118940" target="_blank" >RIV/00216208:11320/11:10118940 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/11:10118940
Result on the web
<a href="http://iopscience.iop.org/1742-6596/266/1/012123" target="_blank" >http://iopscience.iop.org/1742-6596/266/1/012123</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/266/1/012123" target="_blank" >10.1088/1742-6596/266/1/012123</a>
Alternative languages
Result language
angličtina
Original language name
Origin of high-coercivity in nanocomposites by single-precursor sol-gel method
Original language description
We have fabricated high-coercivity nanocomposites constituted of Fe2O3 or CoFe2O4 nanocrystals embedded in amorphous silica matrix by a single-molecule precursor sol-gel method. Our approach enables smooth variation of the Fe(Co) : Si ratio up to 40 weight % of the magnetic phase, resulting in high density nanocomposite. Final crystallite size and phase composition was adjusted by subsequent heat treatment. The Fe2O3/SiO2 samples annealed at 1000 and 1100 degrees C revealed coercivity, H-c similar to 2T at 300 K due to formation of the metastable epsilon-Fe2O3 phase. The CoFe2O4/SiO2 composites exhibit enhancement of the H-c value with increasing annealing temperature. Origin of the large coercivity in the two types of the magnetically hard nanocomposites will be discussed.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GP202%2F08%2FP006" target="_blank" >GP202/08/P006: Nanodimensional arrangement in transition metals and their compounds</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics: Conference Series
ISSN
1742-6588
e-ISSN
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Volume of the periodical
266
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
1-5
UT code for WoS article
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EID of the result in the Scopus database
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