Research output: Contribution to journal › Article › peer-review
An ultra-high-entropy rare earth orthoferrite (UHE REO): solution combustion synthesis, structural features and ferrimagnetic behavior. / Bui, Long M.; Cam, Son T.; Buryanenko, Ivan V.; Semenov, Valentin G.; Nazarov, Denis V.; Kazin, Pavel E.; Nevedomskiy, Vladimir N.; Gerasimov, Evgeny Y.; Popkov, Vadim I.
In: Dalton Transactions, Vol. 52, No. 15, 17.03.2023, p. 4779-4786.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - An ultra-high-entropy rare earth orthoferrite (UHE REO): solution combustion synthesis, structural features and ferrimagnetic behavior
AU - Bui, Long M.
AU - Cam, Son T.
AU - Buryanenko, Ivan V.
AU - Semenov, Valentin G.
AU - Nazarov, Denis V.
AU - Kazin, Pavel E.
AU - Nevedomskiy, Vladimir N.
AU - Gerasimov, Evgeny Y.
AU - Popkov, Vadim I.
PY - 2023/3/17
Y1 - 2023/3/17
N2 - A novel ultra-high-entropy rare earth orthoferrite (UHE REO) of Sc1/16Y1/16La1/16Ce1/16Pr1/16Nd1/16Sm1/16Eu1/16Gd1/16Tb1/16Dy1/16Ho1/16Er1/16Tm1/16Yb1/16Lu1/16FeO3 nominal composition was successfully synthesized for the first time through a simple and efficient solution combustion approach.PXRD, Raman, and 57Fe Mössbauer spectroscopy confirmed the high chemical and phase purity of the synthesized UHE REO (hereafter denoted as ΣREFeO3), which belonged to the Pnma space group, typical of theperovskite-like rare earth orthoferrites. Despite the fact that the main X-ray reflections, vibration modes, andspectral Mössbauer components unambiguously indicate the single-phase nature of the sample, the results ofSEM and TEM make it possible to establish the presence of a main (about 50 nm) and a minor ultrafine (about10 nm) fraction of ΣREFeO3 nanoparticles. The bimodal size distribution of nanoparticles was also reflected inthe magnetic behavior of this substance: the presence of several sextet components in the Mössbauerspectra, the hard single-domain magnetic nature of the main fraction of 50 nm UHE REO nanoparticles, andthe superparamagnetic state of the minor fraction of 10 nm UHE REO nanoparticles. Thus, the unusual features of nanostructured ΣREFeO3 can potentially be used for the creation of new generations of transformers,magnetic memory systems, magnetic screens, radio devices, etc
AB - A novel ultra-high-entropy rare earth orthoferrite (UHE REO) of Sc1/16Y1/16La1/16Ce1/16Pr1/16Nd1/16Sm1/16Eu1/16Gd1/16Tb1/16Dy1/16Ho1/16Er1/16Tm1/16Yb1/16Lu1/16FeO3 nominal composition was successfully synthesized for the first time through a simple and efficient solution combustion approach.PXRD, Raman, and 57Fe Mössbauer spectroscopy confirmed the high chemical and phase purity of the synthesized UHE REO (hereafter denoted as ΣREFeO3), which belonged to the Pnma space group, typical of theperovskite-like rare earth orthoferrites. Despite the fact that the main X-ray reflections, vibration modes, andspectral Mössbauer components unambiguously indicate the single-phase nature of the sample, the results ofSEM and TEM make it possible to establish the presence of a main (about 50 nm) and a minor ultrafine (about10 nm) fraction of ΣREFeO3 nanoparticles. The bimodal size distribution of nanoparticles was also reflected inthe magnetic behavior of this substance: the presence of several sextet components in the Mössbauerspectra, the hard single-domain magnetic nature of the main fraction of 50 nm UHE REO nanoparticles, andthe superparamagnetic state of the minor fraction of 10 nm UHE REO nanoparticles. Thus, the unusual features of nanostructured ΣREFeO3 can potentially be used for the creation of new generations of transformers,magnetic memory systems, magnetic screens, radio devices, etc
UR - https://www.mendeley.com/catalogue/81ea3c20-626a-307c-9818-2a50f0a2976d/
U2 - DOI: 10.1039/d2dt04103k
DO - DOI: 10.1039/d2dt04103k
M3 - Article
VL - 52
SP - 4779
EP - 4786
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 15
ER -
ID: 105538881