Tunneling current-induced butterfly-shaped domains and magnetization switching in DBMTJs

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Tunneling current-induced butterfly-shaped domains and magnetization switching in DBMTJs
	Zhao, SF ; Zhao, J ; Zeng, ZM ; Han, XF ; Yu, ACC ; Ando, Y ; Miyazaki, T
刊名	IEEE TRANSACTIONS ON MAGNETICS
	2005
卷号	41 期号:10 页码:2636
关键词	DOUBLE-BARRIER JUNCTIONS MAGNETORESISTANCE SINGLE
ISSN号	0018-9464
通讯作者	Zhao, SF (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing Natl Lab Condensed Matter, POB 603, Beijing 100080, Peoples R China.
中文摘要	Double barrier magnetic tunnel junctions (DBMTJs) with the layer architecture of Ta (5 nm)/Cu (20 nm)/Ni79Fe21 (10 nm)/Ir22Mn78 (12 nm)/Co75Fe25 (4 nm)/Al (0.9 nm)-oxide/Ni79Fe21L(3 nm)/Al (0.9 nm)-oxide/Co75Fe25(4 nm)/Ir22Mn78 (12 nm)/Py(10 nm)/Cu(30 nm)/Ta(5 nm) were mircofabricated. At room temperature, TMR ratio of 18.7% and 28.4%, resistance-area products(RS) of around 10.3 and 12.7 k Omega mu m(2) and coercivity H-C of 17.5 and 2.0 Oe, were obtained for the DBMTJ at the as-deposited state and the after annealing state respectively. The micromagnetics simulations show that the dynamic butterfly-shaped domains and magnetization switching may occur in the free layer when a tunneling current of the order of 1 to 20 mA passes though the DBMTJ. It decreases the magnetization in the free layer, which may be the one of the reasons of the low TMR ratio observed in the DBMTJ.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/46207]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhao, SF,Zhao, J,Zeng, ZM,et al. Tunneling current-induced butterfly-shaped domains and magnetization switching in DBMTJs[J]. IEEE TRANSACTIONS ON MAGNETICS,2005,41(10):2636.
APA	Zhao, SF.,Zhao, J.,Zeng, ZM.,Han, XF.,Yu, ACC.,...&Miyazaki, T.(2005).Tunneling current-induced butterfly-shaped domains and magnetization switching in DBMTJs.IEEE TRANSACTIONS ON MAGNETICS,41(10),2636.
MLA	Zhao, SF,et al."Tunneling current-induced butterfly-shaped domains and magnetization switching in DBMTJs".IEEE TRANSACTIONS ON MAGNETICS 41.10(2005):2636.