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Perpendicular Magnetic Anisotropy of Amorphous Ferromagnetic CoSiB/[Pt,Au] Multilayer

Authors
Jeong, SolYim, H. I.
Issue Date
Feb-2012
Publisher
KOREAN PHYSICAL SOC
Keywords
Perpendicular magnetic anisotropy; CoSiB; Magnetic multilayer; Amorphous ferromagnetic materials; Coercivity; Thin film
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.60, no.3, pp 450 - 453
Pages
4
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
Volume
60
Number
3
Start Page
450
End Page
453
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/11987
DOI
10.3938/jkps.60.450
ISSN
0374-4884
1976-8524
Abstract
Perpendicular magnetic anisotropy is being widely studied as a possible candidate for a high-density spin-transfer torque magnetic random access memory. The key issues of a high-density spin-transfer torque magnetic random access memory are decreasing the switching current and the high thermal stability. In order to solve these problems, two approaches are suggested: One is the development a new amorphous ferromagnetic material as a pinned layer for a multilayer with a low saturated magnetization (M-s) value because of the interface roughness between the two layers. The other is a search for the most suitable materials with high perpendicular magnetic anisotropy in order to have high thermal stability. In this work, we present an amorphous ferromagnetic Co75Si15B10 material and compare the magnetic properties of a [CoSiB (0.3, 0.4, 0.5 nm)/Pt (1.4 nm)](5) multilayer and new combinations [CoSiB (0.3, 0.4, 0.5 nm)/Au (1.5 nm)](5).
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첨단소재·전자융합공학부 (신소재물리전공)
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