Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (03): 265-267.doi: 10.3866/PKU.WHXB20030317

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Structure and Properties of Ni-Al2O3 Nanochannel Array System by Direct Current Electro-deposition

Xu Jin-Xia;Huang Xin-Min;Qian Li-Hua   

  1. Department of Materials Science and Engineering, Hefei University of Technology, Hefei 230009
  • Received:2002-06-14 Revised:2002-09-12 Published:2003-03-15
  • Contact: Huang Xin-Min E-mail:xmhuang@mail.hf.ah.cn

Abstract: Direct current electro-deposition was applied to add Nickel to the nano-scale holes of porous Alumina template prepared by two-step anodic oxidation. The structure and magnetic performance of Ni-Al2O3 array system were investigated by electron microscope, X-Ray and vibration sample magnetometer. The results indicated that the regularity of the holes’ arrangement in the porous Alumina membrane by two-step anodic oxidation was obviously better than that by one-step anodic oxidation. Nickel was in single crystal state in the nanochannal array system and had definite crystall selective-orientation. The array had obvious magnetic anisotropy, and was promising for perpendicular magnetic recording medium.

Key words: Nano-materials, Direct current electro-deposition, Alumina template,  Perpendicular magnetic recording