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Electronic States in Magnetic Quantum Wells

Published online by Cambridge University Press:  03 September 2012

J. E. Ortega ,
F. J. Himpsel ,
G. J. Mankey  and
R. F. Willis
J. E. Ortega
Affiliation:
IBM T. J. Watson Research Center, P.O. Box 218 Route 134, Yorktown Heights, NY 10598, USA
F. J. Himpsel
Affiliation:
IBM T. J. Watson Research Center, P.O. Box 218 Route 134, Yorktown Heights, NY 10598, USA
G. J. Mankey
Affiliation:
Physics Department, Penn State University, University Park, PA 16802
R. F. Willis
Affiliation:
Physics Department, Penn State University, University Park, PA 16802
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Abstract

We have searched for the electronic states that mediate oscillatory magnetic coupling in superlattices, and have found strong evidence that these are quantum well states, which are created by quantizing the momentum of s,p-band states perpendicular to the interfaces. The quantum well picture also explains how quantum well states in noble metals become spin-polarized, due to a spin-dependent electron reflectivity at the interface with the ferromagnet. The resulting implications for magnetoresistance are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 313: Symposium Q1 – Magnetic Ultrathin Films, Multilayers and Surfaces/Magnetic Interfaces-Physics and Characterizations , 1993 , 143
Copyright
Copyright © Materials Research Society 1993

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References

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