采用射频磁控溅射的方法,在玻璃基片上制备了不同Ag层厚度的[Ag/FePt 2nm]10多层薄膜,经550℃真空热处理后,得到L10有序结构的FePt薄膜.实验结果显示,FePt单层薄膜经550℃退火30min后其易磁化轴处于垂直方向和面内方向之间,而550℃退火60min后其易磁化轴处于垂直于膜面方向,垂直矫顽力和面内矫顽力分别为634和302kA/m;真空退火后[Ag/FePt]10多层膜表现为面内磁晶各向异性,550℃退火60min后[Ag 2.8nm/FePt 2nm]10多层薄膜垂直矫顽力和面内矫顽力分别为309和778kA/m,并且随着Ag层的加入,部分FePt颗粒已经被Ag原子隔开了,颗粒之间的交换耦合作用变弱了.
参考文献
[1] | Yan M L;Sabirianov R F;Xu Y F et al.[J].IEEE Transactions on Magnetics,2004,40:2470. |
[2] | Luo CP.;Gao L.;Liu Y.;Sellmyer DJ.;Liou SH. .Nanostructured FePt : B2O3 thin films with perpendicular magnetic anisotropy[J].Applied physics letters,2000(14):2225-2227. |
[3] | Jia Z;Kang S;Shi S et al.[J].Journal of Applied Physics,2005,97:10J310. |
[4] | Kim H J;Lee S R .[J].Journal of Applied Physics,2005,97:10H304. |
[5] | Shao Y.;Yan ML.;Sellmyer DJ. .Effects of rapid thermal annealing on nanostructure, texture and magnetic properties of granular FePt : Ag films for perpendicular recording (invited)[J].Journal of Applied Physics,2003(10 Pt.3):8152-8154. |
[6] | Zhou Y Z;Chen J S;Chow G M et al.[J].Journal of Applied Physics,2004,95:7495. |
[7] | Zhou Z L;Inaba K;Ito Y et al.[J].Journal of Applied Physics,2004,95:7154. |
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