Emergent c-axis magnetic helix in manganite-nickelate superlattices

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	Emergent c-axis magnetic helix in manganite-nickelate superlattices
	Feng, J.; Fabbris, G.; Jaouen, N.; Meyers, D.; Sutarto, R.; Chiuzbaian, S. G.; Bhattacharya, A.; Dean, M. P. M.; Hoffman, J. D.
刊名	PHYSICAL REVIEW B
	2018
卷号	98 期号:18
关键词	X-ray-absorption Charge-transfer Oxide Heterostructures Weak Ferromagnetism Double Exchange Interface Scattering Holes Antiferromagnet la2nio4+delta
英文摘要	The nature of the magnetic order in (La-2/3 Sr1/3MnO3)(9)/(LaNiO3)(3) superlattices is investigated using x-ray resonant magnetic reflectometry. We observe a c-axis magnetic helix state in the (LaNiO3)(3) layers that has not been reported in bulk nickelates, and which mediates the similar to 130 degrees magnetic coupling between the ferromagnetic (La2/3Sr1/3MnO3)(9) layers, illustrating the power of x rays for discovering the magnetic state of complex oxide interfaces. Resonant inelastic x-ray scattering and x-ray absorption spectroscopy show that Ni-O ligand hole states from bulk LaNiO(3 )are mostly filled due to an interfacial electron transfer from Mn, driving the Ni orbitals closer to an atomiclike 3d(8 )configuration. We discuss the constraints imposed by this electronic configuration to the microscopic origin of the observed magnetic structure. The presence of a magnetic helix in (La-2/3 Sr-1/3 MnO3)(9) /(LaNiO3)(3) is crucial for modeling the potential spintronic functionality of this system and may be important for designing emergent magnetism in novel devices in general.
学科主题	Polymer Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17046]
专题	2018专题
推荐引用方式 GB/T 7714	Feng, J.,Fabbris, G.,Jaouen, N.,et al. Emergent c-axis magnetic helix in manganite-nickelate superlattices[J]. PHYSICAL REVIEW B,2018,98(18).
APA	Feng, J..,Fabbris, G..,Jaouen, N..,Meyers, D..,Sutarto, R..,...&Hoffman, J. D..(2018).Emergent c-axis magnetic helix in manganite-nickelate superlattices.PHYSICAL REVIEW B,98(18).
MLA	Feng, J.,et al."Emergent c-axis magnetic helix in manganite-nickelate superlattices".PHYSICAL REVIEW B 98.18(2018).