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Altering magnetic and optical features of rare earth orthoferrite LuFeO3 ceramics via substitution of Ir into Fe sites

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU143543" target="_blank" >RIV/00216305:26620/22:PU143543 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.jssc.2021.122701" target="_blank" >https://doi.org/10.1016/j.jssc.2021.122701</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jssc.2021.122701" target="_blank" >10.1016/j.jssc.2021.122701</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Altering magnetic and optical features of rare earth orthoferrite LuFeO3 ceramics via substitution of Ir into Fe sites

  • Original language description

    LuFeO3 and LuFe1-xIrxO3 ceramics with x = 0.05 and 0.10 have been obtained by solid-state reaction process. Scanning electron microscope (SEM) analyses have revealed the existence of both particle agglomeration and porosity of nature of the studied samples. The X-ray photoelectron spectroscopy (XPS) investigations have revealed that while Lu has 3+, Fe has mix valence states, 2+ and 3+. On the other hand, the Ir dopant has metallic and 4valence states in the study samples. The Raman investigations unveiled i) the Raman peak intensity reduces with Ir doping until similar to 600 cm(-1), ii) the peaks appearing between 200 cm(-1) and 600 cm(-1) wavenumbers shift toward the smaller values. Magnetic measurements, conducted by vibrating sample magnetometer (VSM), have shown the spin re-orientation (SR) transition temperature around 47 K for all the investigated samples. Furthermore, it is noticed the 5 mol % Ir doped sample has higher magnetization than other samples owing to existence of magnetic impurities such as Lu3Fe5O12. M - H loops have unveiled that Ir doping advances both Hc and Mr values compared to the undoped LFO sample. This increase in both Hc and Mr values could be due to 1) the variation of the canted angels of Fe3+ moments, 2) the advancement of energy of magnetocrystalline anisotropy, and 3) formation of secondary phases such as Lu3Fe5O12 and Fe3O4. Furthermore, the optical band gap examinations have revealed that the band gap of LFO reduces from 2.19 eV to 2.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10403 - Physical chemistry

Result continuities

  • Project

    <a href="/en/project/LM2018110" target="_blank" >LM2018110: CzechNanoLab research infrastructure</a><br>

  • Continuities

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

Others

  • Publication year

    2022

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS

  • ISSN

    0022-3697

  • e-ISSN

    1879-2553

  • Volume of the periodical

    305

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    122701-122701

  • UT code for WoS article

    000715216300018

  • EID of the result in the Scopus database

    2-s2.0-85118567036