Magnetic and Magnetoresistive Properties of Au/Co Superlattiees

S. Araki, T. Takahata, T. Shinjo

Research output: Contribution to journalArticlepeer-review

Abstract

Au/Co artificial superstructure films were prepared by an alternating deposition technique in ultra-high vacuum. A large perpendicular anisotropy was found to occur when the Co layers were thinner than 20 A. From torque measurements the maximum value of K⊥ at room temperature was estimated to be 9.6 x 10(6) erg/cm3. The surface anisotropy energy constant Ks was about 0.4 erg/cm2. The magnetoresistivity was measured as a function of a perpendicular applied magnetic field. The magnetoresistivity curve obtained was hysteretic, showing a peak in the vicinity of Hc. The maximum change in resistivity was about 4% at 77 K.

Original languageEnglish
Pages (from-to)568-574
Number of pages7
JournalIEEE Translation Journal on Magnetics in Japan
Volume5
Issue number7
DOIs
Publication statusPublished - 1990 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Engineering(all)

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