Change in Superparamagnetic State Induced by Swift Heavy Ion Irradiation in Nano-Maghemite
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73624745" target="_blank" >RIV/61989592:15310/24:73624745 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2075-4701/14/4/421" target="_blank" >https://www.mdpi.com/2075-4701/14/4/421</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/met14040421" target="_blank" >10.3390/met14040421</a>
Alternative languages
Result language
angličtina
Original language name
Change in Superparamagnetic State Induced by Swift Heavy Ion Irradiation in Nano-Maghemite
Original language description
The effect of swift heavy ion irradiation on sol–gel-prepared maghemite nanoparticles was studied by 57Fe transmission Mössbauer spectroscopy and X-ray diffractometry (XRD). The room temperature Mössbauer spectra of the non-irradiated nano-maghemite showed poorly resolved magnetically split, typical relaxation spectra due to the superparamagnetic state of the nanoparticles. Significant changes in the line shape, indicating changes in the superparamagnetic state, were found in the Mössbauer spectra upon irradiation by 160 MeV and 155 MeV ^132Xe^26+ ions with fluences of 5 × 10^13 ion cm^−2 and 1 × 10^14 ion cm^−2. XRD of the irradiated maghemite nanoparticles showed a significant broadening of the corresponding lines, indicating a decrease in the crystallite size, compared to those of the non-irradiated ones. The results are discussed in terms of the defects induced by irradiation and the corresponding changes related to the change in particle size and consequently in the superparamagnetic state caused by irradiation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
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)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Metals
ISSN
2075-4701
e-ISSN
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Volume of the periodical
14
Issue of the periodical within the volume
4
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
"421-1"-"421-13"
UT code for WoS article
001210483900001
EID of the result in the Scopus database
2-s2.0-85191457361