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Updated: Jun 17, 2026

Fabrication of Spatially Confined Complex Oxides
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快速制造一个分层纳米结构的多功能铁磁体

Yingxin Hua1, Xiaohong Li1, Jiaxu Li2

  • 1Center for Extreme Deformation Research, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.

Science (New York, N.Y.)
|August 8, 2024
PubMed
概括

研究人员开发了一种层次纳米结构 (HNS) 策略,以克服材料的权衡. 这种新的方法提高了磁体的电阻和能量密度,同时提高了可靠设备的热稳定性.

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Ferromagnetism01:31

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...