Study on Magnetoresistance for Trilayer with Fe3O4 Film


Article Preview

High quality Fe3O4 thin film was synthesized by the magnetron sputtering method using Ar-H2 gas. Giant magneto resistance of the trilayer using Fe3O4 was investigated, where the observed MR ratio was less than 1%. A phenomenological calculation was made to make the origin of the small MR ratio clear, using a parallel current model assuming five passes. It is concluded that the non-magnetic layer surrounded by two magnetic layers is necessary to have the same order resistivity and similar thickness with Fe3O4 layer in order to obtain the large MR ratio for the trilayer using Fe3O4.



Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie






A. Kida et al., "Study on Magnetoresistance for Trilayer with Fe3O4 Film", Materials Science Forum, Vols. 475-479, pp. 2283-2286, 2005

Online since:

January 2005




[1] A. Yanase and K. Siratori, J. Phys. Soc. Jpn. Vol. 53 (1984), p.312.

[2] Y. S. Dedlkov, U. Rüdiger and G. Güntherodt, Phys. Rev. B Vol. 65 (2002), p.64417.

[3] A. Kida, C. Yamamoto, M. Doi, H. Asano and M. Matsui, J. Magn. Magn. Mater. Vol. 272-276(2004), p. E1559.

[4] D. T. Margulies, F. T. Parker, F. E. Spada, R. S. Goldman, J. Li, R. Sinclair and A. E. Berkowitz, Phys. Rev. B Vol. 53 (1996), p.9175.

[5] X. W. Li, A. Gupta, G. Xiao and G. Q. Gong, J. Appl. Phys. Vol. 83 (1998), p.7049.

[6] S. Soeya, J. Hayakawa, H. Takahashi, K. Ito, C. Yamamoto, A. Kida, H. Asano and M. Matsui, Appl. Phys. Lett. Vol. 80 (2002), p.823.

[7] X. W. Li, A. Gupta, G. Xiao, W. Qian and V. P. Dravid, Appl. Phys. Lett. Vol. 73 (1998), p.3282.

[8] H. Matsuda, M. Takeuchi, H. Adachi, M. Hiramoto, N. Matsukawa, A. Odagawa, K. Setsune and H. Sakakima, Jpn. J. Appl. Phys. Vol. 41 (2002), p. L387.

DOI: 10.1143/jjap.41.l387

[9] H. Takahashi, S. Soeya, J. Hayakawa, K. Ito, A. Kida, C. Yamamoto, H. Asano and M. Matsui, J. Appl. Phys. Vol. 93 (2003), p.8029.

[10] G. Hu and Y. Suzuki, Phys. Rev. Lett. Vol. 89 (2002), p.276601.

In order to see related information, you need to Login.