Tunable magnetization steps in mixed valent ferromagnet Eu2CoMnO6

Nara Lee, Jong Hyuk Kim, Dong Gun Oh, Hyun Jun Shin, Hwan Young Choi, Sungkyun Choi, Younjung Jo, Young Jai Choi

Research output: Contribution to journalArticlepeer-review

Abstract

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 TC ≈ 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 O2-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.

Original languageEnglish
Article number9408
JournalScientific reports
Volume11
Issue number1
DOIs
Publication statusPublished - 2021 Dec

Bibliographical note

Funding Information:
The work at Yonsei University was supported by the National Research Foundation of Korea (NRF) [grant numbers NRF-2017R1A5A1014862 (SRC program: vdWMRC center), NRF-2019R1A2C2002601, and NRF-2021R1A2C1006375]. HYC was partially supported by the Graduate School of Yonsei University Research Scholarship Grant in 2017. The Work at Kyungpook National University was supported by an NRF grant [grant number NRF-2018K2A9A1A06069211, NRF-2019R1A2C1089017]. The work at Sungkyunkwan University was supported by the Institute for Basic Science (IBS-R011-Y3-2021). AC magnetic susceptibility was measured at the Korea Basic Science Institute, Korea. We would like to thank Editage (www.editage.co.kr) for English language editing.

Publisher Copyright:
© 2021, The Author(s).

All Science Journal Classification (ASJC) codes

  • General

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