Magnetocrystalline anisotropy imprinting of an antiferromagnet on an amorphous ferromagnet in FeRh/CoFeB heterostructures

doi:10.1038/s41427-020-00248-x

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Magnetocrystalline anisotropy imprinting of an antiferromagnet on an amorphous ferromagnet in FeRh/CoFeB heterostructures
	Xie, Yali; Zhan, Qingfeng; Hu, Yong; Hu, Xiao; Chi, Xiaodan; Zhang, Chenyu; Yang, Huali; Xie, Wenhui; Zhu, Xiaoyan; Gao, Jianhua
刊名	NPG ASIA MATERIALS
	2020
卷号	12 期号:1
关键词	SPIN MAGNETORESISTANCE ELECTRONICS DEPENDENCE METALS
DOI	10.1038/s41427-020-00248-x
英文摘要	Magnetic anisotropy is a fundamental key parameter of magnetic materials that determines their applications. For ferromagnetic materials, the magnetic anisotropy can be easily detected by using conventional magnetic characterization techniques. However, due to the magnetic compensated structure in antiferromagnetic materials, synchrotron measurements, such as X-ray magnetic linear dichroism, are often needed to probe their magnetic properties. In this work, we observed an imprinted fourfold magnetic anisotropy in the amorphous ferromagnetic layer of FeRh/CoFeB heterostructures. The MOKE and ferromagnetic resonance measurements show that the easy magnetization axes of the CoFeB layer are along the FeRh < 110 > and FeRh < 100 > directions for the epitaxially grown FeRh layer in the antiferromagnetic and ferromagnetic states, respectively. The combined Monte Carlo simulation and first-principles calculation indicate that the fourfold magnetic anisotropy of the amorphous CoFeB layer is imprinted due to the interfacial exchange coupling between the CoFeB and FeRh moments from the magnetocrystalline anisotropy of the epitaxial FeRh layer. This observation of imprinting the magnetocrystalline anisotropy of antiferromagnetic materials on easily detected ferromagnetic materials may be applied to probe the magnetic structures of antiferromagnetic materials without using synchrotron methods.
学科主题	Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20401]
专题	2020专题
作者单位	Zhan, QF (corresponding author), East China Normal Univ, Sch Phys & Elect, Key Lab Polar Mat & Devices MOE, Shanghai 200241, Peoples R China.
推荐引用方式 GB/T 7714	Xie, Yali,Zhan, Qingfeng,Hu, Yong,et al. Magnetocrystalline anisotropy imprinting of an antiferromagnet on an amorphous ferromagnet in FeRh/CoFeB heterostructures[J]. NPG ASIA MATERIALS,2020,12(1).
APA	Xie, Yali.,Zhan, Qingfeng.,Hu, Yong.,Hu, Xiao.,Chi, Xiaodan.,...&Li, Run-Wei.(2020).Magnetocrystalline anisotropy imprinting of an antiferromagnet on an amorphous ferromagnet in FeRh/CoFeB heterostructures.NPG ASIA MATERIALS,12(1).
MLA	Xie, Yali,et al."Magnetocrystalline anisotropy imprinting of an antiferromagnet on an amorphous ferromagnet in FeRh/CoFeB heterostructures".NPG ASIA MATERIALS 12.1(2020).