The Os substitution into Fe sites in LuFeO3 multiferroic and its effects on the electrical and dielectric features
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU144922" target="_blank" >RIV/00216305:26620/22:PU144922 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68081723:_____/22:00558430
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0925838822014268?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838822014268?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2022.165035" target="_blank" >10.1016/j.jallcom.2022.165035</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The Os substitution into Fe sites in LuFeO3 multiferroic and its effects on the electrical and dielectric features
Popis výsledku v původním jazyce
Solid-state technique was utilized to obtain the LuFeO3 (LFO) and LuFe1-xOsxO3 (LFOO) compounds having x = 0.05 and 0.10. The orthorhombic structure and the presence of secondary phases in the studied samples have been unveiled by X-ray diffractometer (XRD) investigations. The scanning electron microscope (SEM) examinations have unveiled that not only the particle sizes enlarge with Os substitution but also particle agglomeration takes place. The X-ray photoelectron spectroscopy (XPS) investigations have exposed the oxidations of Fe as 2 + and 3 + for the LFO sample, 3 + for 5 mol% Os substituted specimen and mix of 2 + and 3 + for 10 mol% Os doped sample. In addition, it was shown that Os has 4 + oxidation state in the doped samples. Dielectrical and electrical conductivity studies of the obtained ceramics conducted between - 100 degrees C (173 K) up to 100 degrees C (373 K) with 20 degrees C temperature pace have shown that the undoped sample has much higher values than the Os doped samples. Such differences have been ascribed to the absence of Fe2+ ions and lattice distortions in the Os doped samples. In addition, it was realized that different conduction models need to be adapted to comprehend the conduction mechanism in the examined specimens. (C) 2022 Elsevier B.V. All rights reserved.
Název v anglickém jazyce
The Os substitution into Fe sites in LuFeO3 multiferroic and its effects on the electrical and dielectric features
Popis výsledku anglicky
Solid-state technique was utilized to obtain the LuFeO3 (LFO) and LuFe1-xOsxO3 (LFOO) compounds having x = 0.05 and 0.10. The orthorhombic structure and the presence of secondary phases in the studied samples have been unveiled by X-ray diffractometer (XRD) investigations. The scanning electron microscope (SEM) examinations have unveiled that not only the particle sizes enlarge with Os substitution but also particle agglomeration takes place. The X-ray photoelectron spectroscopy (XPS) investigations have exposed the oxidations of Fe as 2 + and 3 + for the LFO sample, 3 + for 5 mol% Os substituted specimen and mix of 2 + and 3 + for 10 mol% Os doped sample. In addition, it was shown that Os has 4 + oxidation state in the doped samples. Dielectrical and electrical conductivity studies of the obtained ceramics conducted between - 100 degrees C (173 K) up to 100 degrees C (373 K) with 20 degrees C temperature pace have shown that the undoped sample has much higher values than the Os doped samples. Such differences have been ascribed to the absence of Fe2+ ions and lattice distortions in the Os doped samples. In addition, it was realized that different conduction models need to be adapted to comprehend the conduction mechanism in the examined specimens. (C) 2022 Elsevier B.V. All rights reserved.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2018110" target="_blank" >LM2018110: Výzkumná infrastruktura CzechNanoLab</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN
0925-8388
e-ISSN
1873-4669
Svazek periodika
911
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
14
Strana od-do
„165035-1“-„165035-14“
Kód UT WoS článku
000799773600002
EID výsledku v databázi Scopus
2-s2.0-85128306707