Temperature-dependent interlayer exchange coupling strength in synthetic antiferromagnetic [Pt/Co]2/Ru/[Co/Pt]4 multilayers*

Project supported by the National Natural Science Foundation of China (Grant No. 11704191), the Jiangsu Specially-Appointed Professor, the Natural Science Foundation of Jiangsu Province of China (Grant No. BK20171026), and the Six-Talent Peaks Project in Jiangsu Province, China (Grant No. XYDXX-038).
Li Yong1, Jin Xiangjun1, Pan Pengfei1, Tan Fu Nan2, Lew Wen Siang2, Ma Fusheng1, †
       

(color online) (a) Schematic illustration for [Co/Pt] superlattice-based p-SAF multilayer structure. (b) The out-of-plane M–H curves of p-SAF structures with tRu = 0.0 nm and 0.6 nm, respectively. (c) The normalized out-of-plane M–H curves for different [Co/Pt]x superlattices (x = 2, 4, 6) without Ru spacer layer. (d) The normalized out-of-plane and in-plane M–H curves of the p-SAF structure with tRu = 0.6 nm at 300 K. The inserted long/short arrows indicate the out-of-plane magnetization in the top/bottom FM layers of the SAF multilayers, respectively.