Structure and magnetic properties of Ni nanowires array fabricated by direct current electro-deposition in anodic alumina membrane

Abstract

Ordered nanostructure arrays of Ni−Al₂O₃ were synthesized by direct current electro-deposition in anodic alumina membranes (AAM). The investigation with an electron microscope, an X-ray diffractmeter and a vibration sample magnetometer indicates that the Ni nanowires, growing in the pores of AAM with about 45nm in diameter, are monocrystalline and have a definite preferred crystallizing orientation. The magnetic behavior of the arrays and their mechanism were discussed.

Keywords

nanometer materials / magnetic property / electro-deposition / anodic alumina membranes (AAM)

References

[1] Masuda H, Fukudak K. Ordered Metal Nanohole Arrays Made by a Two-step Replication of Honeycomb Structures of Anodic Alumina. J. Science, 1995, 268(9): 1466-1469.

[2] O’Sullivan J P, Wood G C. Proc. R. Soc., London, 1970, 317: 511-517.

[3] Kawal S, Ueda R. Magnetic Properties of Anodic Oxide Coatings on Aluminium Containing Electrodeposited Co Co−Ni. J. Electrochem. Soc., 1975, 122: 32-41.

[4] All-Mawlawi D, Coombs N, Moskovits M.. Magnetic Properties of Fe Deposited into Anodic Aluminum Oxide Pores as a Function of Particle Size. J. Appl. Phys., 1991, 70: 4421-4430.

[5] Motte L, Billoudet F, Lacaze E. Self-organization into 2D and 3D Superlattices of Nanosized Particles Differing by Their Size. J. Phys. Chem., 1997, 101: 138-144.

[6] Wang Y H, Mou J M, Cai W L. Mechanism of Metal Depositied in Porous Alumina by Alternating Current. J. Acta Phys.-Chem. Sin., 2001, 17(2): 116-126.

[7] Cunadjela K, Ferre R, Louail L, . Magnetization Reversal In Cobalt And Nickel Electrodeposited Nanowires. J. Appl. Phys., 1997, 81(8): 5455-5461.

[8] Tian Minbo. Magnetic Materials, 2001 Beijing: Tsinghua University Press. 142-152. (in Chinese)

[9] Liu J P, Hao X Y.Nanometer Science And Technology M. J. Science Press., 2002:13–14

[10] Daimon H, Kwakami O, Jnagoya O, Skremoto A. Magnetic Proterties of Fe−Cu and Fe−P Electrodeposited Alumite Films, Jap. J. Appl. Phys., 1991, 132: 282-292.