Self-assembly magnetic memorizer and forming method thereof

Abstract

The invention provides a self-assembly magnetic memorizer which comprises a memorizer body. The memorizer body comprises a disc-shaped hard disk substrate, a plurality of annular rail grooves are formed in the hard disk substrate by taking the circle center of the hard disk substrate as the center, a silicon dioxide nanosphere array is arranged in the rail grooves, the surfaces, in contact with the air, of silicon dioxide nanospheres are provided with iron platinum thin films, and an iron platinum dot matrix is formed. A forming method of the self-assembly magnetic memorizer comprises the steps that the annular rail grooves are etched in the hard disk substrate with the photoetching technique; the silicon dioxide nanosphere array is prepared in the rail grooves in a nanometer self-assembly micromachining way; the iron platinum thin films are grown on the silicon dioxide nanospheres, and the regular iron platinum dot matrix is formed. The self-assembly magnetic memorizer lowers the coupling effect of magnetic domains to the maximum degree, meets the requirement for high magnetic recording density, and has environmental stability at the same time. The forming method of the self-assembly magnetic memorizer overcomes physical defects of traditional continuous magnetic storage media.

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