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High Quality NiFe/Ag Superlattices Made by Pulsed Laser Deposition (PLD)

Published online by Cambridge University Press:  15 February 2011

Randolph E. Treece ,
Paul Dorsey ,
James S. Horwitz ,
Syed Qadri  and
Douglas B. Chrisey
Randolph E. Treece
Affiliation:
Condensed Matter and Radiation Sciences Division, Naval Research Laboratory, Washington, DC, 20375
Paul Dorsey
Affiliation:
Condensed Matter and Radiation Sciences Division, Naval Research Laboratory, Washington, DC, 20375
James S. Horwitz
Affiliation:
Condensed Matter and Radiation Sciences Division, Naval Research Laboratory, Washington, DC, 20375
Syed Qadri
Affiliation:
Condensed Matter and Radiation Sciences Division, Naval Research Laboratory, Washington, DC, 20375
Douglas B. Chrisey
Affiliation:
Condensed Matter and Radiation Sciences Division, Naval Research Laboratory, Washington, DC, 20375
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Abstract

High-quality thin-film superlattices of permalloy (NiFe) and silver (Ag) have been grown by pulsed laser deposition (PLD) for the first time. The alternating metallic layers weregrown from individual NiFe and Ag targets utilizing an automated multi-target holder coupled to a conventional PLD system. The targets were ablated at a base pressure of 4×10−7 Torr and the material deposited on room-temperature (100) silicon and on fused silica substrates. The films were characterized by X-ray diffraction (XRD), magnetic field-dependent resistivity, and ferromagnetic resonance (FMR). XRD was used to confirm uniform bilayer thicknesses. The magnetic field-dependent resistance measurements indicated the presence of magnetoresistance in the deposited films. An as-deposited film with a bilayer thickness of 75 Å demonstrated a roomtemperature magnetoresistive effect of 0.15 %. FMR has been used to determine the relationship between NiFe magnetism and the observed magnetoresistance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 382: Symposium G – Structure and Properties of Multilayered Thin Films , 1995 , 89
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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