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Tunable magnetization steps in mixed valent ferromagnet Eu2CoMnO6
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DOI：10.1038/s41598-021-88950-w.png)
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Abstract
En 中文
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 Eu2CoMnO6. Ferromagnetic order emerges below T-C approximate to 122 K along the crystallographic c axis. The difficulty in altering Co2+ and Mn4+ 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.
Keywords:
EXCHANGE BIAS
DOMAIN-WALL
POLARIZATION
DYNAMICS
ROTATION
FIELD
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