Core-shell magnetic structure of La1-xSrxMnO3+δ nanocrystallites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00485366" target="_blank" >RIV/68378271:_____/17:00485366 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TMAG.2017.2700394" target="_blank" >http://dx.doi.org/10.1109/TMAG.2017.2700394</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TMAG.2017.2700394" target="_blank" >10.1109/TMAG.2017.2700394</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Core-shell magnetic structure of La1-xSrxMnO3+δ nanocrystallites

Popis výsledku v původním jazyce

Magnetic La1-xSrxMnO3+δparticles of composition x = 0.36 and average size of 40 nm have been prepared from the oxidizing flux of sodium nitrite at ≈500 °C. Detailed magnetic and neutron diffraction measurements have been performed on raw nanoparticles and particles subjected to mild acid leaching. Based on these experiments and X-ray fluorescence analysis of the respective products, we conclude on the core-shell magnetic structure of the molten-salt-prepared particles, consisting of ferromagnetic (FM) ordering in the interior and A-type antiferromagnetic (AFM) ordering in the intermediate shell just below the outermost, magnetically disordered layer. The reason for such complex arrangement, unprecedented in sol-gel-prepared manganite nanoparticles of the same composition, is in a certain radial distribution of La, Sr cations, and an increased oxygen stoichiometry related to the presence of extra oxygen atoms covalently bound at the particle surface.n

Název v anglickém jazyce

Core-shell magnetic structure of La1-xSrxMnO3+δ nanocrystallites

Popis výsledku anglicky

Magnetic La1-xSrxMnO3+δparticles of composition x = 0.36 and average size of 40 nm have been prepared from the oxidizing flux of sodium nitrite at ≈500 °C. Detailed magnetic and neutron diffraction measurements have been performed on raw nanoparticles and particles subjected to mild acid leaching. Based on these experiments and X-ray fluorescence analysis of the respective products, we conclude on the core-shell magnetic structure of the molten-salt-prepared particles, consisting of ferromagnetic (FM) ordering in the interior and A-type antiferromagnetic (AFM) ordering in the intermediate shell just below the outermost, magnetically disordered layer. The reason for such complex arrangement, unprecedented in sol-gel-prepared manganite nanoparticles of the same composition, is in a certain radial distribution of La, Sr cations, and an increased oxygen stoichiometry related to the presence of extra oxygen atoms covalently bound at the particle surface.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA15-10088S" target="_blank" >GA15-10088S: Magnetismus manganitových částic a jejich útvarů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Magnetics

ISSN

0018-9464

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000413981300075

EID výsledku v databázi Scopus

2-s2.0-85032966871