在 (110) 导向,单相,多铁共替代BiFeO薄膜中的电场驱动的铁磁反转3
Takuma Itoh1, Kei Shigematsu1,2,3, Hena Das1,2
1Materials and Structures Laboratory, Institute of Integrated Research, Institute of Science Tokyo, Yokohama, 226-8501, Japan.
Advanced materials (Deerfield Beach, Fla.)
|April 28, 2025
概括
电场诱导的磁化逆转在室温下的多铁体BiFe$_{0.9}$Co$_{0.1}$O$_{3}$中实现. 多铁材料的这一突破为实用,低功耗的电子设备铺平了道路.
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
- 固态化学 固态化学
背景情况:
- 多铁材料为超低功耗计算提供了潜力,但电场诱导的磁化逆转仍然是可扩展设备的重大障碍.
- 很少有实用的室温多铁系统在铁电和铁磁之间表现出强烈的合,限制了它们的应用.
- 同替代 bismuth ferrite (BiFe$_{0.9}$Co$_{0.1}$O$_{3}$) 是一个有前途的候选物,因为它在环境温度下具有结合的铁电和弱铁磁性质.
研究的目的:
- 为了研究同替代多铁素BiFe的潜力,用于电场诱导的磁化逆转.
- 在室温多铁材料中通过电场实现磁化逆转的实用方法.
- 探索用于设备应用的铁性顺序之间的静态合.
主要方法:
- 理论计算表明,铁电和磁顺序之间存在静态合.
- 实验观察电场诱导的磁化逆转.
- 使用在平面上的抛光配置进行铁电切换.
主要成果:
- 一个109度的铁电切换事件被证明可以诱导外平面磁化元件的反转.
- 电场诱导的磁化逆转在BiFe$_{0.9}$Co$_{0.1}$O$_{3}$中经验证实.
- 飞机内抛光配置被证明是有效的,并且对于设备集成来说是理想的.
结论:
- 同替代的BiFe$_{0.9}$Co$_{0.1}$O$_{3}$表现出铁电和磁顺序之间的静态合,使得电场诱导的磁化可以逆转.
- 观察到的现象适用于室温设备应用,特别是那些需要低功耗的设备.
- 在平面中抛光为开发新型基于多铁的电子设备提供了一条实用的途径.
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