Giant magnetoresistance in heterogeneous Cu-Co and Ag-Co alloy films (invited)

A. E. Berkowitz, J. R. Mitchell, M. J. Carey, A. P. Young, D. Rao, A. Starr, Shufeng Zhang, F. E. Spada, F. T. Parker, A. Hutten, G. Thomas

Research output: Contribution to journalArticle

125 Citations (Scopus)

Abstract

Giant magnetoresistance in sputtered single films of Cu-Co and Ag-Co heterogeneous alloys is discussed. The films consist of Co-rich precipitates in a nonferromagnetic matrix. The Ag-Co films have higher Δρ/ρ and Δρ values than the Cu-Co films, possibly due to less Co dissolved in the Ag matrix. Δρ scales inversely with precipitate particle size, implying that Co-rich clusters ≤20 Å diameter may be most effective for spin dependent scattering. This trend of the data and a phenomenological model suggest that interfacial spin dependent scattering is significantly stronger than the scattering within the Co-rich particles.

Original languageEnglish (US)
Pages (from-to)5320-5325
Number of pages6
JournalJournal of Applied Physics
Volume73
Issue number10
DOIs
StatePublished - 1993
Externally publishedYes

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precipitates
scattering
matrices
trends

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Berkowitz, A. E., Mitchell, J. R., Carey, M. J., Young, A. P., Rao, D., Starr, A., ... Thomas, G. (1993). Giant magnetoresistance in heterogeneous Cu-Co and Ag-Co alloy films (invited). Journal of Applied Physics, 73(10), 5320-5325. https://doi.org/10.1063/1.353767

Giant magnetoresistance in heterogeneous Cu-Co and Ag-Co alloy films (invited). / Berkowitz, A. E.; Mitchell, J. R.; Carey, M. J.; Young, A. P.; Rao, D.; Starr, A.; Zhang, Shufeng; Spada, F. E.; Parker, F. T.; Hutten, A.; Thomas, G.

In: Journal of Applied Physics, Vol. 73, No. 10, 1993, p. 5320-5325.

Research output: Contribution to journalArticle

Berkowitz, AE, Mitchell, JR, Carey, MJ, Young, AP, Rao, D, Starr, A, Zhang, S, Spada, FE, Parker, FT, Hutten, A & Thomas, G 1993, 'Giant magnetoresistance in heterogeneous Cu-Co and Ag-Co alloy films (invited)', Journal of Applied Physics, vol. 73, no. 10, pp. 5320-5325. https://doi.org/10.1063/1.353767
Berkowitz AE, Mitchell JR, Carey MJ, Young AP, Rao D, Starr A et al. Giant magnetoresistance in heterogeneous Cu-Co and Ag-Co alloy films (invited). Journal of Applied Physics. 1993;73(10):5320-5325. https://doi.org/10.1063/1.353767
Berkowitz, A. E. ; Mitchell, J. R. ; Carey, M. J. ; Young, A. P. ; Rao, D. ; Starr, A. ; Zhang, Shufeng ; Spada, F. E. ; Parker, F. T. ; Hutten, A. ; Thomas, G. / Giant magnetoresistance in heterogeneous Cu-Co and Ag-Co alloy films (invited). In: Journal of Applied Physics. 1993 ; Vol. 73, No. 10. pp. 5320-5325.
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