学術雑誌論文

学術雑誌論文

text

AIP Advances. 2018, 8(12), p. 125313

Frustration and relaxation of antiferromagnetic domains reversed by magneto-electric field cooling in a Pt/Co/Au/Cr₂O₃/Pt-stacked film

American Institute of Physics

英語

text

2018-12-06

https://doi.org/10.1063/1.5053136

Yu Shiratsuchi, Shunsuke Watanabe, Shogo Yonemura, Tatsuo Shibata, and Ryoichi Nakatani, AIP Advances 8, 125313 (2018); https://doi.org/10.1063/1.5053136.

Using magnetic domain observations, we investigated the reversal process of the perpendicular exchange bias polarity resulting from the antiferromagnetic Cr₂O₃ domain reversal driven by magneto-electric field cooling (MEFC). The exchange bias polarity changed from negative to positive with increasing electric field during MEFC. The relevant change in the magnetic domain revealed the stochastic appearance of the reversed magnetic domains that exhibit the positive exchange bias. The local magnetization curves suggest that the antiferromagnetic domain state after MEFC was frustrated because of energy competition between the interfacial exchange coupling and the bulk magneto-electric effect. The frustrated nature of the magnetic domain structure is supported by the training effect of the exchange bias after MEFC.

Copyright 2018 Author(s). This article is distributed under a Creative Commons Attribution (CC BY) License.

89970

Frustration and relaxation of antiferromagnetic domains reversed by magneto-electric field cooling in a Pt/Co/Au/Cr₂O₃/Pt-stacked film

American Institute of Physics

英語

2018-12-06

AIP Advances

8

12

125313

https://doi.org/10.1063/1.5053136

https://hdl.handle.net/11094/89970