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<p>This contribution extensively explores the magnetic and structural changes during the phase transition from zircon-type DyCrO<sub>4</sub> to perovskite DyCrO<sub>3</sub>. The formation of single phases of DyCrO<sub>4</sub> and its transition to the DyCrO<sub>3</sub> phase at higher temperatures have been thoroughly discussed. Further, the structural study and purity of the samples were also examined using the refinement data. A detailed morphology and structural analysis was carried out for both phases using TEM, XPS and RAMAN measurement techniques. The magnetization <i>vs</i> temperature curves have been studied to get the transition temperatures for DyCrO<sub>4</sub> and DyCrO<sub>3</sub>, indicating a weak ferromagnetic (FM) and antiferromagnetic nature (AFM) in the phases, respectively. Furthermore, the study was extended to two different magnetic fields, 100 Oe and 500 Oe, to observe the change in the magnetic behaviour of DyCrO<sub>4</sub> and DyCrO<sub>3</sub>. DyCrO<sub>3</sub> displays the negative magnetization (NM) phenomenon at higher magnetic fields.</p>

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Phase transition from DyCrO4 to DyCrO3: magnetic behavior and structural reorganization

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Supriya Ughade

摘要

This contribution extensively explores the magnetic and structural changes during the phase transition from zircon-type DyCrO4 to perovskite DyCrO3. The formation of single phases of DyCrO4 and its transition to the DyCrO3 phase at higher temperatures have been thoroughly discussed. Further, the structural study and purity of the samples were also examined using the refinement data. A detailed morphology and structural analysis was carried out for both phases using TEM, XPS and RAMAN measurement techniques. The magnetization vs temperature curves have been studied to get the transition temperatures for DyCrO4 and DyCrO3, indicating a weak ferromagnetic (FM) and antiferromagnetic nature (AFM) in the phases, respectively. Furthermore, the study was extended to two different magnetic fields, 100 Oe and 500 Oe, to observe the change in the magnetic behaviour of DyCrO4 and DyCrO3. DyCrO3 displays the negative magnetization (NM) phenomenon at higher magnetic fields.