Influence of aggregate coating on relaxations in the systems of iron oxide nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00386310" target="_blank" >RIV/68378271:_____/12:00386310 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/12:10127271

Result on the web

<a href="http://dx.doi.org/10.1142/S179329201250004X" target="_blank" >http://dx.doi.org/10.1142/S179329201250004X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1142/S179329201250004X" target="_blank" >10.1142/S179329201250004X</a>

Result language

angličtina

Original language name

Influence of aggregate coating on relaxations in the systems of iron oxide nanoparticles

Original language description

We have investigated properties of systems of strongly interacting magnetic nanoparticles in order to estimate the influence of the inter-aggregate interactions on the collective phenomena. We have compared two systems composed of ?-Fe2O3 nanoparticles,prepared by thermal decomposition of an organic precursor and coprecipitation, respectively; with those prepared by coprecipitation, containing the particle aggregates coated by SiO2 layer of different thickness. Detailed magnetic studies of all samplessuch as the temperature dependence of magnetization and frequency dependent a.c.susceptibility,recorded also in external magnetic field,revealed the blocking temperature closeto 300K and super-spinglass(SSG) or SSG-like nature of the systems. The slightminimization of the interaction strength in the system with increasing thickness of the SiO2 coating has been observed.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GAP108%2F10%2F1250" target="_blank" >GAP108/10/1250: Multifunctional nanoparticles: smart preparation methods and study of their physical properties</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Nano

ISSN

1793-2920

e-ISSN

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Volume of the periodical

7

Issue of the periodical within the volume

1

Country of publishing house

SG - SINGAPORE

Number of pages

10

Pages from-to

1-10

UT code for WoS article

000303244900009

EID of the result in the Scopus database

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