Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe/NiO/Fe/CoO/Ag(001)

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	Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe/NiO/Fe/CoO/Ag(001)
	J. Li; A. Tan; S. Ma; R. F. Yang; E. Arenholz; C. Hwang; Z. Q. Qiu
	2014
发表期刊	Physical Review Letters
ISSN	0031-9007
卷号	113 期号:14
摘要	Fe/NiO/Fe/CoO/Ag(001) single crystalline films were grown epitaxially and investigated by x-ray magnetic circular dichroism and x-ray magnetic linear dichroism. The bottom Fe layer magnetization is pinned through exchange coupling to the CoO layer and the top Fe layer magnetization can be rotated by an in-plane external magnetic field. We find that the NiO spins wind up to form a domain wall due to the perpendicular NiO/Fe interfacial coupling as the top layer Fe magnetization rotates from 0 degrees to 90 degrees, but switch wall chirality and unwind the wall as the Fe magnetization rotates from 90 degrees to 180 degrees. This observation shows that Mauri's 180 degrees domain wall does not exist in perpendicularly coupled ferromagnetic-antiferromagnetic systems in the strong coupling regime.
部门归属	[li, j. ; tan, a. ; ma, s. ; yang, r. f. ; qiu, z. q.] univ calif berkeley, dept phys, berkeley, ca 94720 usa. [ma, s.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [arenholz, e.] univ calif berkeley, lawrence berkeley natl lab, adv light source, berkeley, ca 94720 usa. [hwang, c.] korea res inst stand & sci, taejon 305340, south korea. ; li, j (reprint author), univ calif berkeley, dept phys, berkeley, ca 94720 usa.
关键词	Exchange Bias Model Anisotropy Films Interfaces
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73269
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Li,A. Tan,S. Ma,et al. Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe/NiO/Fe/CoO/Ag(001)[J]. Physical Review Letters,2014,113(14).
APA	J. Li.,A. Tan.,S. Ma.,R. F. Yang.,E. Arenholz.,...&Z. Q. Qiu.(2014).Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe/NiO/Fe/CoO/Ag(001).Physical Review Letters,113(14).
MLA	J. Li,et al."Chirality Switching and Winding or Unwinding of the Antiferromagnetic NiO Domain Walls in Fe/NiO/Fe/CoO/Ag(001)".Physical Review Letters 113.14(2014).