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Fabrication of High Temperature Superconductor-Colossal Magnetoresistor Spin Injection Devices

Published online by Cambridge University Press:  10 February 2011

J. Kim ,
R. M. Stroud ,
R. C Y. Auyeung ,
C. R. Eddy ,
D. Koller ,
M. S. Osofsky ,
R. J. Soulen Jr ,
J. S. Horwitz  and
D. B. Chrisey
J. Kim
Affiliation:
Naval Research Laboratory, Washington, DC 20375
R. M. Stroud
Affiliation:
Naval Research Laboratory, Washington, DC 20375
R. C Y. Auyeung
Affiliation:
Naval Research Laboratory, Washington, DC 20375
C. R. Eddy
Affiliation:
Naval Research Laboratory, Washington, DC 20375
D. Koller
Affiliation:
Naval Research Laboratory, Washington, DC 20375
M. S. Osofsky
Affiliation:
Naval Research Laboratory, Washington, DC 20375
R. J. Soulen Jr
Affiliation:
Naval Research Laboratory, Washington, DC 20375
J. S. Horwitz
Affiliation:
Naval Research Laboratory, Washington, DC 20375
D. B. Chrisey
Affiliation:
Naval Research Laboratory, Washington, DC 20375
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Abstract

Trilayer YBa2Cu3O7-δ/(SrTiO3, CeO2)/La0.67Sr0.33MnO3-δ devices have been fabricated for the study of supercurrent suppression due to the injection of spin-polarized quasiparticle current. The critical current for a YBa2Cu3O7-δ/100 Å SrTiO3/La0.67Sr0.33MnO3-δ device was found to decrease from 118 mA to 12.6 mA, for an injection current of 60 mA. The effect of film microstructure on the critical current suppression was investigated. Defects in the SrTiO3 and CeO2 layers were found to control the device properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 494: Symposium V – Science & Technology of Magnetic Oxides , 1997 , 249
Copyright
Copyright © Materials Research Society 1998

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References

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