Title :
Signal-to-noise ratio improvement of MAMR on CoX/Pt media
Author :
Zhao, Z. ; Li, J. ; Wang, L. ; Wei, D. ; Gao, K.
Author_Institution :
Sch. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China
Abstract :
Microwave assisted magnetic recording (MAMR) is a promising candidate to achieve the areal density above 1Tb/in2 [1]. Nowadays CoX/Pt multilayer is chosen as the media for STO MAMR due to its ultrahigh interfacial anisotropy [2]. In this paper, a micromagnetic model is utilized for recording simulation on high anisotropy (Hk >25 kOe) CoX/Pt media, with Voronoi polycrystalline built up based on a regular mesh; and SNR gain versus series of microwave field of STO and inter-facial anisotropy field Hk ar e analyzed respectively.
Keywords :
cobalt alloys; magnetic anisotropy; magnetic recording; micromagnetics; multilayers; platinum; CoX-Pt media; SNR gain; STO MAMR; Voronoi polycrystalline built up; areal density; interfacial anisotropy field; micromagnetic model; microwave assisted magnetic recording; microwave field; signal-noise ratio improvement; ultrahigh interfacial anisotropy; Anisotropic magnetoresistance; Grain boundaries; Media; Micromagnetics; Microwave oscillators; Microwave theory and techniques; Signal to noise ratio;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157142
