MS  >> Vol. 4 No. 4 (July 2014)

    Fabrication and Characterization of FePt-C Granular Thin Films

  • 全文下载: PDF(653KB) HTML    PP.134-138   DOI: 10.12677/MS.2014.44020  
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韩锦婉,章 黎,郦宇琦,蒋俊程,吴世锦,郑 洁:台州学院物理与电子工程学院,台州

FePt颗粒薄膜磁控溅射法Fept-C Granular Film Magnetron Sputtering Method


本文采用磁控溅射法在热氧化硅基片上生长FePt颗粒薄膜。利用MgO籽层来引发FePt合金薄膜的fct织构,采取加入C的方法来减小其颗粒尺寸。采用X射线衍射仪(XRD)、超导量子干涉仪(SQUID)和透射电镜(TEM)对FePt颗粒进行表征,结果表明制备的样品具有优良的L10相结构,其磁滞曲线表明方形度很好,而且垂直矫顽力能有12 kOe,颗粒大小为8 nm。该磁性薄膜非常适合用做下一代高密度磁存储媒质,能大幅度提高磁存储密度。

FePt-C granular thin film was fabricated on a thermally-oxidized silicon substrate by magnetron sputtering method. A MgO interlayer was applied to induce the L10 structure in the FePt alloy film. The addition of carbon can reduce the grain size of FePt. XRD, SQUID and TEM were applied to measure its structure, magnetic properties, and microstructures, respectively. Results show that the film has excellent L10 order, and the squareness of MH loop is close to unity, with a high per-pendicular coercivity of 12 kOe. The microstructure shows that it has small grain size of 8 nm with uniform distribution. This magnetic film is a promising candidate for magnetic recording media with ultra-high areal density.

韩锦婉, 章黎, 郦宇琦, 蒋俊程, 吴世锦, 郑洁. FePt-C颗粒薄膜的制备和表征[J]. 材料科学, 2014, 4(4): 134-138.


[1] Ruigrok, J.J.M., Coehoorn, R., Cumpson, S.R. and Kesteren, H.W. (2000) Disk recording beyond 100 Gb/in.2: Hybrid recording? (invited). Journal of Applied Physics, 87, 5398-5403.
[2] Zeng, Y., Huang, X.Y., Zhou, W.D. and Yu, S.K. (2013) Numerical study of thermal-induced lubricant depletion induced on an anisotropic multilayer disk in a heat assisted magnetic recording system. International Journal of Heat and Mass Transfer, 60, 322-333.
[3] Hirayama, Y., Tamai, I., Takekuma, I., et al. (2009) Role of underlayer for segregated structure formation of CoCrPt- SiO¬2 granular thin film. Journal of Physics: Conference Series, 165, 012033.
[4] 冯春, 李宝河, 滕蛟, 杨涛, 于广华 (2005) Ag和Ti底层对[Fe/Pt]n多层膜有序化的影响. 物理学报, 10, 4898- 4902.
[5] 汪元亮, 顾正飞, 成钢, 马垒, 赵家成 (2006) Fe-Pt纳米晶永磁合金薄膜研究现状. 电工材料, 3, 29-33.
[6] Xu, Z., Liu, X.D., Gao, R.X., Chen, Z.F., Lai, T.S., Hu, H.N., et al. (2008) Photoinduced magnetic softening of perpendicularly magnetized L10-FePt granular films. Applied Physics Letters, 93, 162509.
[7] 刘梅, 陈芳慧, 王永红, 张玉梅, 李海波 (2011) C底层厚度对FePt(001)织构生长的影响. 兵器材料科学与工程, 4, 9-12.
[8] Chen, J.S., Lim, B.C., Ding, Y.F., et al. (2009) Granular L10 FePt-X(X=C, TiO2, Ta2O5) (001) nanocomposite films small grain size for high density magnetic recording. Journal of Applied Physics, 105, 07B702.
[9] 李小丽, 许小红, 武海顺 (2005) [FePt/C]n多层膜的结构和磁学性能. 稀有金属材料与工程, 9, 1509-1512.