轨道磁矩控制的反向磁电效应在bcc-Co3Mn/Fe/V/PMN-PT多铁异构结构中
Takamasa Usami1,2, Yuichi Murakami3, Ryota Watarai4
1Spintronics Research Network Division, Institute for Open and Transdisciplinary Research Initiatives, The University of Osaka, Suita, Osaka, Japan.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 27, 2026
概括
研究人员开发了多铁基异构结构,证明了巨大的反向磁电 (CME) 效应. 这一突破使得低功耗的自旋电子设备的电场控制成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 这就是Spintronics.
背景情况:
- 多铁体异构结构为新型电子设备提供了潜力.
- 用电场控制磁性属性是一个关键的挑战.
- 轨道磁矩控制是巨大的磁电效应的一个有希望的策略.
研究的目的:
- 为了证明具有巨大的反向磁电 (CME) 效应的多铁体异构结构.
- 提出并验证基于轨道磁矩控制的材料设计策略.
- 开发室温电场控制的超低功耗的自旋电子设备.
主要方法:
- 材料设计策略侧重于轨道磁矩控制.
- 制造 (211) 导向的半稳定体中心立方体 (bcc) 铁磁 Co3Mn.
- 集成Fe/V层和沉积在压电Pb{Mg1/3Nb2/3) O3-PbTiO3{011).
主要成果:
- 实验实现了一个高度 (211) 导向的bcc Co3Mn层.
- 展示了一个巨大的反向磁电 (CME) 效应.
- 实现了可重复和不可挥发的磁化向量切换.
结论:
- 拟议的材料设计策略对于实现巨大的CME效应是有效的.
- 开发的异构结构使电场控制磁场成为可能.
- 这项工作为低功耗,室温自旋电子设备铺平了道路.
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