The investigation of structural and magnetic properties of Er2−xCoxO3 nano-oxides

Zein K. Heiba; Lutfi Arda; Nurcan Dogan; Özgül Karataş; Mohamed Bakr Mohamed

doi:10.1007/s10854-021-07110-y

The investigation of structural and magnetic properties of Er_2−xCo_xO₃ nano-oxides

Zein K. Heiba
, Lutfi Arda
, Nurcan Dogan
, Özgül Karataş^*
, Mohamed Bakr Mohamed

^*Corresponding author for this work

Ain Shams University
Bahcesehir University
Gebze Technical University
Konya Technical University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The sol–gel technique was used to synthesize Er_2−xCo_xO₃ (0.0 ≤ x ≤ 0.30) mixed oxides to analyze structural and magnetic properties. The Rietveld analyses show that Er_2−xCo_xO₃ nanoparticles up to x = 0.1 have single phase, for x ≥ 0.2 Co₃O₄ phase appears. Preferential cationic distribution between the non-equivalent sites 8b and 24d is found for all samples. A systematic variation is found in the average maximum strain with composition x. The magnetic analysis showed that super-paramagnetism is the reason of “S”-shaped hysteresis loops and also non-zero magnetic moments. Both Mr and Ms increased with increasing concentration of Co⁺².

Original language	English
Journal	Journal of Materials Science: Materials in Electronics
Volume	33
Issue number	1
DOIs	https://doi.org/10.1007/s10854-021-07110-y
Publication status	Published - Jan 2022
Externally published	Yes

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Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

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abstract = "The sol–gel technique was used to synthesize Er2−xCoxO3 (0.0 ≤ x ≤ 0.30) mixed oxides to analyze structural and magnetic properties. The Rietveld analyses show that Er2−xCoxO3 nanoparticles up to x = 0.1 have single phase, for x ≥ 0.2 Co3O4 phase appears. Preferential cationic distribution between the non-equivalent sites 8b and 24d is found for all samples. A systematic variation is found in the average maximum strain with composition x. The magnetic analysis showed that super-paramagnetism is the reason of “S”-shaped hysteresis loops and also non-zero magnetic moments. Both Mr and Ms increased with increasing concentration of Co+2.",

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AU - Arda, Lutfi

AU - Dogan, Nurcan

AU - Karataş, Özgül

AU - Mohamed, Mohamed Bakr

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N2 - The sol–gel technique was used to synthesize Er2−xCoxO3 (0.0 ≤ x ≤ 0.30) mixed oxides to analyze structural and magnetic properties. The Rietveld analyses show that Er2−xCoxO3 nanoparticles up to x = 0.1 have single phase, for x ≥ 0.2 Co3O4 phase appears. Preferential cationic distribution between the non-equivalent sites 8b and 24d is found for all samples. A systematic variation is found in the average maximum strain with composition x. The magnetic analysis showed that super-paramagnetism is the reason of “S”-shaped hysteresis loops and also non-zero magnetic moments. Both Mr and Ms increased with increasing concentration of Co+2.

AB - The sol–gel technique was used to synthesize Er2−xCoxO3 (0.0 ≤ x ≤ 0.30) mixed oxides to analyze structural and magnetic properties. The Rietveld analyses show that Er2−xCoxO3 nanoparticles up to x = 0.1 have single phase, for x ≥ 0.2 Co3O4 phase appears. Preferential cationic distribution between the non-equivalent sites 8b and 24d is found for all samples. A systematic variation is found in the average maximum strain with composition x. The magnetic analysis showed that super-paramagnetism is the reason of “S”-shaped hysteresis loops and also non-zero magnetic moments. Both Mr and Ms increased with increasing concentration of Co+2.

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ER -

The investigation of structural and magnetic properties of Er_2−xCo_xO₃ nano-oxides

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