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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%2F68081723%3A_____%2F22%3A00558430" target="_blank" >RIV/68081723:_____/22:00558430 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/00216305:26620/22:PU144922

  • 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

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

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

    AUG

  • Stát vydavatele periodika

    CH - Švýcarská konfederace

  • Počet stran výsledku

    14

  • Strana od-do

    165035

  • Kód UT WoS článku

    000799773600002

  • EID výsledku v databázi Scopus

    2-s2.0-85128306707