Large voltage-controlled magnetic anisotropy in the SrTiO3/Fe/Cu structure

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	Large voltage-controlled magnetic anisotropy in the SrTiO3/Fe/Cu structure
	Peng, Shouzhong; Li, Sai; Kang, Wang; Zhou, Jiaqi; Lei, Na; Zhang, Youguang; Yang, Hongxin; Li, Xiang; Amiri, Pedram Khalili; Wang, Kang L.
刊名	APPLIED PHYSICS LETTERS
	2017
卷号	111 期号:15 页码:152403
ISSN号	0003-6951
英文摘要	First-principles calculations are performed to investigate the magnetic anisotropy and voltage-controlled magnetic anisotropy (VCMA) in the strontium titanate (SrTiO3)-based structure. It is found that SrTiO3/Fe/Cu gives rise to an interfacial perpendicular magnetic anisotropy (PMA) of 1.3 mJ/m(2). More importantly, the VCMA coefficient of this structure is 37% larger than that of the MgO-based counterpart. The microscopic mechanism is elucidated by resolving the VCMA effect to each atomic layer and each orbital hybridization. We demonstrate that the VCMA effect is not confined at the first Fe monolayer of the SrTiO3/Fe interface but extends into the second and third Fe monolayers. The origin of these phenomena can be explained with the changes of contributions to PMA from each orbital hybridization induced by redistributions of orbital occupancy under an electric field. Published by AIP Publishing.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13581]
专题	2017专题
推荐引用方式 GB/T 7714	Peng, Shouzhong,Li, Sai,Kang, Wang,et al. Large voltage-controlled magnetic anisotropy in the SrTiO3/Fe/Cu structure[J]. APPLIED PHYSICS LETTERS,2017,111(15):152403.
APA	Peng, Shouzhong.,Li, Sai.,Kang, Wang.,Zhou, Jiaqi.,Lei, Na.,...&Zhao, Weisheng.(2017).Large voltage-controlled magnetic anisotropy in the SrTiO3/Fe/Cu structure.APPLIED PHYSICS LETTERS,111(15),152403.
MLA	Peng, Shouzhong,et al."Large voltage-controlled magnetic anisotropy in the SrTiO3/Fe/Cu structure".APPLIED PHYSICS LETTERS 111.15(2017):152403.