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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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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