The internal structure of magnetic nanoparticles determines the magnetic response

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00476778" target="_blank" >RIV/68378271:_____/17:00476778 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/17:10362177 RIV/00216208:11320/17:10362177
Result on the web
<a href="http://dx.doi.org/10.1039/c6nr07262c" target="_blank" >http://dx.doi.org/10.1039/c6nr07262c</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c6nr07262c" target="_blank" >10.1039/c6nr07262c</a>

Result language
angličtina
Original language name
The internal structure of magnetic nanoparticles determines the magnetic response
Original language description
This work aims to emphasize that the magnetic response of single-domain magnetic nanoparticles (NPs) is driven by the NPs’ internal structure, and the NP size dependencies of magnetic properties are overestimated. The relationship between the degree of the NPs’ crystallinity and magnetic response is unambiguously demonstrated in eight samples of uniform maghemite/magnetite NPs and corroborated with the results obtained for about 20 samples of spinel ferrite NPs with different degrees of crystallinity. The NP samples were prepared by the thermal decomposition of an organic iron precursor subjected to varying reaction conditions, yielding variations in the NP size, shape and relative crystallinity. We characterized the samples by using several complementary methods. We evaluated the NPs’ relative crystallinity by comparing the NP sizes determined from TEM and PXRD and further inspecting the NPs’ internal structure and relative crystallinity by using HR-TEM. The results of the structural characterization were put in the context of the NPs’ magnetic response. Our results clearly demonstrate that the NP crystallinity level that is mirrored in the internal spin order drives the specific magnetic response of the single-domain NPs.
Czech name
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Czech description
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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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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