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

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)]{sub 10}, which activation energy was evaluated as 4.4 x 10{sup {minus}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% ({Delta}R = 0.8 {Omega}, R{sub s} = 140 {Omega}) at room temperature.

Authors:
; ; ;
Publication Date:
Research Org.:
Kyushu Univ., Fukuoka (JP)
OSTI Identifier:
20000665
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt1; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MAGNETIC PROPERTIES; ELECTRICAL PROPERTIES; TIN OXIDES; LAYERS; NICKEL; IRON; COBALT; COMPOSITE MATERIALS

Citation Formats

Matsuyama, K., Nishihata, K., Komatsu, S., and Nozaki, Y. Magnetic and electric properties of Sn-oxide/M (M = Fe,Ni,Co) multilayers. United States: N. p., 1999. Web. doi:10.1109/20.801019.
Matsuyama, K., Nishihata, K., Komatsu, S., & Nozaki, Y. Magnetic and electric properties of Sn-oxide/M (M = Fe,Ni,Co) multilayers. United States. doi:10.1109/20.801019.
Matsuyama, K., Nishihata, K., Komatsu, S., and Nozaki, Y. Wed . "Magnetic and electric properties of Sn-oxide/M (M = Fe,Ni,Co) multilayers". United States. doi:10.1109/20.801019.
@article{osti_20000665,
title = {Magnetic and electric properties of Sn-oxide/M (M = Fe,Ni,Co) multilayers},
author = {Matsuyama, K. and Nishihata, K. and Komatsu, S. and Nozaki, Y.},
abstractNote = {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)]{sub 10}, which activation energy was evaluated as 4.4 x 10{sup {minus}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% ({Delta}R = 0.8 {Omega}, R{sub s} = 140 {Omega}) at room temperature.},
doi = {10.1109/20.801019},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt1,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}