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Transport Measurements of Magnetic Multilayers at Reduced Lateral Dimensions

Published online by Cambridge University Press:  15 February 2011

Y.D. Park ,
H.D. Hudspeth ,
T.J. Schultz ,
A. Cabbibo ,
J. A. Caballero ,
F. Sharifi  and
J.R. Childress
Y.D. Park
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611–2066
H.D. Hudspeth
Affiliation:
Department of Physics, University of Florida, Gainesville, FL 32611–8440
T.J. Schultz
Affiliation:
Department of Physics, University of Florida, Gainesville, FL 32611–8440
A. Cabbibo
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611–2066
J. A. Caballero
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611–2066
F. Sharifi
Affiliation:
Department of Physics, University of Florida, Gainesville, FL 32611–8440
J.R. Childress
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611–2066
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Abstract We report on the fabrication and transport properties of magnetic multilayers with widths down to 100 nm. We employ e-beam processed nano-deposition masks to pattern magnetic multilayers which define nano-wires by lift-off or by a removal process such as ion-milling. Two different magnetic multilayer systems (antiferromagnetically coupled Co/Cu multilayers and NiFe/Cu/Co spin-valves) are investigated. Structures resulting from the lift-off process show high contact resistance and high resistivities while ion-milled structures show resistivities close to that of bulk. For Fe(50Å)/[Co(15Å)/Cu(20Å)]x20 /Cu(30Å), patterned nano-wire structures display no negative magnetoresistance but a positive magnetoresistance that is linear with applied field and no apparent hysteresis. For Ta(50Å)/NiFe(50Å)/Cu(35Å)/Co(20Å)/Cu(30Å), we found the resistance to decrease as the absolute value of magnetic field is decreased and found hysteresis to be present.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 475: Symposium M – Magnetic Ultrathin Films, Multilayers, and Surfaces – 1997 , 1997 , 303
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Kryden, M.H., Messuer, W. and Carley, L.R., J. Appl. Phys. 79, p. 4456 (1996).Google Scholar
2. Baibich, M.N., Broto, J.M., Fert, A., Nguyen Van Dau, F., Petroff, F., Etienne, P., Crouzet, G., Friederich, A. and Chazelas, J., Phys. Rev. Lett. 61, p. 2427 (1988).Google Scholar
3. Adeyeye, A.O., Bland, J. A. C., Daboo, C., Lee, J., Ebels, U., and Ahmed, H., J. Appl. Phys. 79, p. 6120 (1996).Google Scholar
4. Sanders, S. C., Cross, R. W., Russek, S. E., Roshko, A., and Oti, J. O., J. Appl. Phys. 79, p. 6240 (1996).Google Scholar
5. de la Figuera, J., Huerta, M.A., Prieto, J. E., Ocal, C., and Miranda, R., Appl. Phys Lett. 66, p. 1006 (1995).Google Scholar
6. Park, Y.D., Caballero, J.A., Cabbibo, A., Childress, J.R., Hudspeth, H.D., Schultz, T.J., and Sharifi, F. to be published in J. Appl. Phys.Google Scholar