中国物理B ›› 2004, Vol. 13 ›› Issue (12): 2153-2157.doi: 10.1088/1009-1963/13/12/031
张爱国, 王荫君, 韩秀峰, 詹文山
Zhang Ai-Guo (张爱国), Wang Yin-Jun (王荫君), Han Xiu-Feng (韩秀峰), Zhan Wen-Shan (詹文山)
摘要: 2.0nmCo/tnmRu$_{1-x}$Pd$_x$ multilayers with x=0, 0.05, 0.08, 0.24, 0.39 and 0.48 were prepared by magnetron sputtering. The spacer layer thickness of both Ru (before doping Pd) and RuPd (after doping Pd) varies from 0.2nm to 1.6nm. Two effects have been investigated: (1) the dependence of the interlayer coupling on the thickness of Ru$_{1-x}$Pd$_x$ as a function of x and (2) the dependence of the interlayer coupling on Pd doping density, x, as a function of thickness of Ru$_{1-x}$Pd$_x$. Our results indicate that the interlayer coupling is strongly dependent on the doping density and the spacer layer thickness. The saturation field $H_s$ increases when very low concentration of Pd doped in the Ru layers and a suitable spacer thickness are adopted.
中图分类号: (Magnetic properties of interfaces (multilayers, superlattices, heterostructures))