Role of surface on magnetic properties of La1-xSrxMnO3+? nanocrystallites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00450598" target="_blank" >RIV/68378271:_____/15:00450598 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/TMAG.2015.2433267" target="_blank" >http://dx.doi.org/10.1109/TMAG.2015.2433267</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TMAG.2015.2433267" target="_blank" >10.1109/TMAG.2015.2433267</a>
Alternative languages
Result language
angličtina
Original language name
Role of surface on magnetic properties of La1-xSrxMnO3+? nanocrystallites
Original language description
The magnetic La1?xSrxMnO3 particles of 50 nm size have been prepared in the flux of sodium nitrite. A detailed magnetic study, including the neutron diffraction at zero and high pressures, has been performed for x = 0.28 and 0.37, as well as on comparative samples prepared via sol-gel route. Based on these experiments we conclude that the molten salt prepared particles show significant oxygen excess ? > 0 that can be ascribed mainly to the surface oxygen chemisorption. As a consequence, the valence of Mn ions is shifted towards a higher oxidation state and this shift probably exhibits a pronounced radial distribution in the particles. We suggest that such overdoping is an additional reason for ?magnetically dead shell in manganite nanoparticles and isalso the source of surface stress that compresses the particle core. Such compressive stress drives the magnetic ground state of the composition x = 0.37 towards a mixture of FM and A-type AFM ordering.
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/GA15-10088S" target="_blank" >GA15-10088S: Magnetism of manganite particles and their formations</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Magnetics
ISSN
0018-9464
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
3
Pages from-to
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UT code for WoS article
000364770500003
EID of the result in the Scopus database
2-s2.0-84946146720