Tunable interface anisotropy in Pt/Co1-xFex/Pt multilayer

doi:10.1088/1674-1056/22/6/067504

Abstract Interfacial magnetic anisotropy in Pt/Co_1-xFe_x/Pt multilayer is tuned by doping iron atoms into cobalt layer. The perpendicular magnetic anisotropy and out-of-plane coercivity are found to decrease with x increasing. For a specific x, the out-of-plane coercivity acquires a maximal value as a function of the CoFe layer thickness. At low temperature, the coercivity is enhanced. Small coercivity but reasonably large perpendicular magnetic anisotropy can be obtained by controlling x and CoFe layer thickness.

Keywords: Pt/CoFe/Pt multilayers perpendicular magnetic anisotropy interfacial magnetic anisotropy

Received: 07 December 2012
Revised: 16 January 2013
Accepted manuscript online:

PACS:	75.70.-i	(Magnetic properties of thin films, surfaces, and interfaces)
	75.30.Gw	(Magnetic anisotropy)
	75.70.Cn	(Magnetic properties of interfaces (multilayers, superlattices, heterostructures))

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11074112, 10974032, and 51201114), the National Basic Research Program of China (Grant Nos. 2009CB929201 and 2010CB923401), and the Key Project of the Chinese Ministry of Education (Grant No. 210074).

Corresponding Authors: Shi Zhong
E-mail: shizhong@tongji.edu.cn

Cite this article:

Chen Yong-Yong (陈勇勇), Shi Zhong (时钟), Zhou Shi-Ming (周仕明), Rui Wen-Bin (芮文彬), Du Jun (杜军) Tunable interface anisotropy in Pt/Co_1-xFe_x/Pt multilayer 2013 Chin. Phys. B 22 067504

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Tunable interface anisotropy in Pt/Co1-xFex/Pt multilayer

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Tunable interface anisotropy in Pt/Co_1-xFe_x/Pt multilayer