The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2006
Filed:
Nov. 24, 2003
Recording layer of magneto-optical storage medium having sublayer and method of fabricating the same
Dong Woo Suh, Daejon-Shi, KR;
Ho Jun Ryu, Daejon-Shi, KR;
Yeung Joon Sohn, Daejon-Shi, KR;
Yong Woo Park, Daejon-Shi, KR;
Mun Cheol Paek, Daejon-Shi, KR;
Dong Woo Suh, Daejon-Shi, KR;
Ho Jun Ryu, Daejon-Shi, KR;
Yeung Joon Sohn, Daejon-Shi, KR;
Yong Woo Park, Daejon-Shi, KR;
Mun Cheol Paek, Daejon-Shi, KR;
Abstract
A recording layer of a magneto-optical storage medium having a sublayer in accordance with the present invention comprises a recording layer on which information is recorded and stored; and a sublayer formed above or below the recording layer and made up of an alloy containing a transition metal, wherein a magnetic anisotropy energy of the sublayer is exchange-coupled to the recording layer, thereby enhancing a coercive force of the recording layer. The sublayer may be formed in a single-layered structure having one layer, or in a multi-layered structure having a plurality of layers. The sublayer is preferably made up of an alloy containing a transition metal used for the recording layer. According to the present invention, the coercive force of the recording layer can be increased by an exchange coupling effect between the recording layer and its adjacent sublayer, and thus, the stability of the magnetic domain in the recording layer can be improved. Therefore, the size of the magnetic domain can be significantly reduced, and the density of recording can be increased.