Magnetic and electric properties of Sn-oxide/M (M=Fe, Ni, Co) multilayers

K. Matsuyama, K. Nishihata, S. Komatsu, Y. Nozaki

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Abstract

Magnetic and electronic properties of novel semiconductive-oxide/ferromagnet multilayers of Sn-oxide and ferromagnetic metals (Fe, Ni, Co), deposited with a multi-target rf magnetron sputtering system, were studied. Among the studied material systems, Co/Sn-oxide sustains well-defined layer structure and ferromagnetic property for the thinnest thickness of 1 nm. A thermionic CPP transport was observed in [Co(2 nm) /Sn-oxide (4 nm)10, which activation energy was evaluated as 4.4×10-3 erg from the thermal dependence of conductivity. Negative magnetoresistance was observed in two orthogonal directions of in-plane external fields, which confirms spin dependent transport in Sn-oxide thin film. The measured MR change is 0.6 % (δR = 0.8 Ω, Rs=140 Ω) at room temperature.

Original languageEnglish
Pages (from-to)2901-2903
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 1
DOIs
Publication statusPublished - Dec 1 1999

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Matsuyama, K., Nishihata, K., Komatsu, S., & Nozaki, Y. (1999). Magnetic and electric properties of Sn-oxide/M (M=Fe, Ni, Co) multilayers. IEEE Transactions on Magnetics, 35(5 PART 1), 2901-2903. https://doi.org/10.1109/20.801019