Magnetic and Magnetoresistive Properties of Au/Co Superlattiees

S. Araki; T. Takahata; T. Shinjo

doi:10.1109/TJMJ.1990.4564144

Magnetic and Magnetoresistive Properties of Au/Co Superlattiees

S. Araki, T. Takahata, T. Shinjo

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	568-574
Number of pages	7
Journal	IEEE Translation Journal on Magnetics in Japan
Volume	5
Issue number	7
DOIs	https://doi.org/10.1109/TJMJ.1990.4564144
Publication status	Published - 1990 Jul
Externally published	Yes

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Engineering (miscellaneous)
Engineering(all)

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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.",

author = "S. Araki and T. Takahata and T. Shinjo",

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AU - Shinjo, T.

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N2 - 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.

AB - 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.

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Magnetic and Magnetoresistive Properties of Au/Co Superlattiees

Abstract

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