Terahertz Emission From an Exchange-Coupled Synthetic Antiferromagnet

doi:10.1103/PhysRevApplied.13.054016

	Terahertz Emission From an Exchange-Coupled Synthetic Antiferromagnet
	Zhang, Qi 1,2; Yang, Yumeng2,3 ; Luo, Ziyan 2; Xu, Yanjun 2; Nie, Rongxiang 4; Zhang, Xinhai 1; Wu, Yihong 2
	2020-05-07
发表期刊	PHYSICAL REVIEW APPLIED
ISSN	2331-7019
卷号	13 期号:5
发表状态	已发表
DOI	10.1103/PhysRevApplied.13.054016
摘要	We report on terahertz emission from Fe-Mn-Pt/Ru/Fe-Mn-Pt and Pt/Co-Fe-B/Ru/Co-Fe-B/Pt synthetic antiferromagnet (SAF) structures upon irradiation by a femtosecond laser; the former is via the anomalous Hall effect, whereas the latter is through the inverse spin Hall effect. The antiparallel alignment of the two ferromagnetic layers leads to a terahertz emission peak amplitude that is almost double that of a corresponding single-layer or bilayer emitter with the same equivalent thickness. In addition, we demonstrate by both simulation and experiment that terahertz emission provides a powerful tool to probe the magnetization reversal processes of individual ferromagnetic layers in a SAF structure, as the terahertz signal is proportional to the vector difference (M-1 - M-2) of the magnetizations of the two ferromagnetic layers.
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收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Ministry of Education, Singapore[MOE2017-T2-2-011][MOE2018-T2-1-076] ; Shenzhen Peacock Plan[KQTD2015071710313656] ; Shenzhen Science and Technology Innovation Committee[JCYJ20180504170604552]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000531193600002
出版者	AMER PHYSICAL SOC
EI入藏号	20202308792361
EI主题词	Antiferromagnetic materials ; Ferromagnetic materials ; Ferromagnetism ; Magnetization reversal ; Terahertz waves
EI分类号	Magnetism: Basic Concepts and Phenomena:701.2 ; Magnetic Materials:708.4 ; Electromagnetic Waves:711
WOS关键词	SPIN CURRENT ; DEPENDENCE ; EMITTERS
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/120853
专题	信息科学与技术学院_PI研究组_杨雨梦组
通讯作者	Zhang, Xinhai
作者单位	1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Xueyuan Rd 1088, Shenzhen 518055, Peoples R China 2.Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117583, Singapore 3.ShanghaiTech Univ, Sch Informat Sci & Technol, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China 4.Natl Univ Singapore, NUS Suzhou Res Inst, 377 Linquan St, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qi,Yang, Yumeng,Luo, Ziyan,et al. Terahertz Emission From an Exchange-Coupled Synthetic Antiferromagnet[J]. PHYSICAL REVIEW APPLIED,2020,13(5).
APA	Zhang, Qi.,Yang, Yumeng.,Luo, Ziyan.,Xu, Yanjun.,Nie, Rongxiang.,...&Wu, Yihong.(2020).Terahertz Emission From an Exchange-Coupled Synthetic Antiferromagnet.PHYSICAL REVIEW APPLIED,13(5).
MLA	Zhang, Qi,et al."Terahertz Emission From an Exchange-Coupled Synthetic Antiferromagnet".PHYSICAL REVIEW APPLIED 13.5(2020).