Title Study of gadolinium substitution effects in hexagonal yttrium manganite YMnO3 /
Authors Karoblis, Dovydas ; Žarkov, Aleksej ; Garškaitė, Edita ; Mažeika, Kęstutis ; Baltrūnas, Dalis Antanas ; Niaura, Gediminas ; Beganskienė, Aldona ; Kareiva, Aivaras
DOI 10.1038/s41598-021-82621-6
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Is Part of Scientific reports.. London : Nature research. 2021, vol. 11, art. no. 2875, p. [1-14].. eISSN 2045-2322
Keywords [eng] yttrium manganite ; gadolinium ; sol-gel ; magnetization ; structure
Abstract [eng] In the present work, gadolinium substitution effects on the properties of yttrium manganite YxGd1−xMn0.97Fe0.03O3 (x from 0 to 1 with a step of 0.2) synthesized by an aqueous sol–gel method have been investigated. Partial substitution of Mn3+ by 57Fe3+ in the manganite was also performed in order to investigate deeper the structural properties of synthesized compounds applying Mössbauer spectroscopy. It was demonstrated that substitution of Y3+ by Gd3+ ions leads to the changes of structural, magnetic and morphological properties of investigated system. The crystal structure gradually transformed from hexagonal to orthorhombic with an increase of Gd3+ content in the crystal lattice. The mixed phase was obtained when x = 0.6, whereas other compounds were determined to be monophasic. Magnetization measurements revealed paramagnetic behavior of all specimens, however magnetization values were found to be dependent on chemical composition of the samples. Solid solutions with orthorhombic structure revealed higher magnetization values compared to those of hexagonal samples. The highest magnetization was observed for pure GdMn0.97Fe0.03O3. Structural properties were investigated by powder X-ray diffraction, Mössbauer, FTIR and Raman spectroscopies. Morphological features of the synthesized specimens were studied by scanning electron microscopy (SEM).
Published London : Nature research
Type Journal article
Language English
Publication date 2021
CC license CC license description