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<p>This study investigates the structural and magnetic properties of La<sub>0.8</sub>Ba<sub>0.2</sub>CrO<sub>3</sub> and La<sub>0.8</sub>Ba<sub>0.2</sub>(Cr<sub>0.5</sub>Mn<sub>0.5</sub>)O<sub>3</sub> bulk perovskite samples synthesized via the sol–gel method. Magnetization measurements reveal that La<sub>0.8</sub>Ba<sub>0.2</sub>CrO<sub>3</sub> exhibits canted antiferromagnetic behavior, driven by antisymmetric Dzyaloshinskii-Moriya interactions between Cr<sup>3+</sup> ions, with a Néel temperature (<i>T</i><sub><i>N</i></sub>) of 268&#xa0;K. In contrast, La<sub>0.8</sub>Ba<sub>0.2</sub>(Cr<sub>0.5</sub>Mn<sub>0.5</sub>)O<sub>3</sub> demonstrates ferromagnetic ordering, characterized by a Curie temperature (<i>T</i><sub><i>c</i></sub>) of 180&#xa0;K and a saturation magnetization (<i>Ms</i>) of 28 Am<sup>2</sup>/kg at 5&#xa0;K. These results highlight the crucial role of Cr and Mn substitution in tailoring the magnetic properties of perovskite materials.</p>

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Exploring the structural and magnetic properties of La0.8Ba0.2CrO3 and La0.8Ba0.2(Cr0.5Mn0.5)O3 perovskite oxides

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月13日

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  • Cumhur Gökhan Ünlü,
  • Aleyna Akcay Tataroglu,
  • Cigdem Yener

摘要

This study investigates the structural and magnetic properties of La0.8Ba0.2CrO3 and La0.8Ba0.2(Cr0.5Mn0.5)O3 bulk perovskite samples synthesized via the sol–gel method. Magnetization measurements reveal that La0.8Ba0.2CrO3 exhibits canted antiferromagnetic behavior, driven by antisymmetric Dzyaloshinskii-Moriya interactions between Cr3+ ions, with a Néel temperature (TN) of 268 K. In contrast, La0.8Ba0.2(Cr0.5Mn0.5)O3 demonstrates ferromagnetic ordering, characterized by a Curie temperature (Tc) of 180 K and a saturation magnetization (Ms) of 28 Am2/kg at 5 K. These results highlight the crucial role of Cr and Mn substitution in tailoring the magnetic properties of perovskite materials.