文章基本信息

标题：Tunable magnetization steps in mixed valent ferromagnet Eu ₂CoMnO ₆
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作者：Nara Lee ; Jong Hyuk Kim ; Dong Gun Oh 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2021
卷号：11
DOI：10.1038/s41598-021-88950-w
语种：English
出版社：Springer Nature
摘要：Magnetic properties can be manipulated to enhance certain functionalities by tuning different material processing parameters. Here, we present the controllable magnetization steps of hysteresis loops in double-perovskite single crystals of Eu 2CoMnO 6. Ferromagnetic order emerges below T C ≈ 122 K along the crystallographic c axis. The difficulty in altering Co 2+ and Mn 4+ ions naturally induces additional antiferromagnetic clusters in this system. Annealing the crystals in different gas environments modifies the mixed magnetic state, and results in the retardation (after O 2-annealing) and bifurcation (after Ar-annealing) of the magnetization steps of isothermal magnetization. This remarkable variation offers an efficient approach for improving the magnetic properties of double-perovskite oxides.