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Electron-Spin Polarization in Tunnel Junctions with Ferromagnetic EuS Barriers

Published online by Cambridge University Press:  03 September 2012

Xin Hao ,
J. S. Moodera  and
R. Meservey
Xin Hao
Affiliation:
Francis Bitter National Magnetic Laboratory, Massachusetts Institute of Technology, 150 Albany Street, Cambridge, MA 02139 Department of Materials Science and Engineering, Massachusetts Institute of Technology, 150 Albany Street, Cambridge, MA 02139
J. S. Moodera
Affiliation:
Francis Bitter National Magnetic Laboratory, Massachusetts Institute of Technology, 150 Albany Street, Cambridge, MA 02139
R. Meservey
Affiliation:
Francis Bitter National Magnetic Laboratory, Massachusetts Institute of Technology, 150 Albany Street, Cambridge, MA 02139
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Abstract

Spin-resolved tunneling in the structure metal-EuS-metal has been obtained. The metal electrodes used in our experiments being non-magnetic, polarization of the tunnel current is attributed to the conduction band splitting in EuS below its ferromagnetic Curie temperature. Enhanced Zeeman splitting in the superconducting aluminum film is also observed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 151: Symposium G – Growth, Characterization and Properties of Ultrathin Magnetic Films and Multilayers , 1989 , 167
Copyright
Copyright © Materials Research Society 1989

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References

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