Magnetic Properties of Various Thick Co-Fe Circular Dot Arrays

Abstract:

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We have studied the magnetic properties of Co-Fe circular dot arrays with various thicknesses and diameters in order to determine the optimum thickness and diameter of these dot arrays with a single-domain state for the transmission of spin information. For the thickness of 10 nm, the magnetic state changes from a multi-domain state to a closure-domain state and further to a single-domain state with decreasing diameter. On the other hand, for the thickness of 30 nm and 50 nm, all magnetic states are in a vortex state, regardless of the diameter. From these results, it is found that the optimum thickness and diameter of Co-Fe circular dots with a single-domain state are, respectively, 10 nm and less than 100 nm.

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

879-882

DOI:

10.4028/www.scientific.net/SSP.124-126.879

Citation:

Y. Endo et al., "Magnetic Properties of Various Thick Co-Fe Circular Dot Arrays", Solid State Phenomena, Vols. 124-126, pp. 879-882, 2007

Online since:

June 2007

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Price:

$35.00

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