Title :
Recording properties of patterned Co/sub 70/Pt/sub 18/Cr/sub 12/ perpendicular media
Author :
Albrecht, M. ; Rettner, C.T. ; Moser, A. ; Anders, S. ; Thomson, T. ; Best, M.E. ; Terris, B.D.
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
Abstract :
Summary form only given. Patterning magnetic media with pre-defined, single-domain magnetic bits is one possible candidate for extending magnetic storage densities beyond the limit set by thermal decay for continuous media. In order to study the writing and read-back characteristics of high density patterned media, prototype nanometer-scale magnetic structures were made by patterning Co/sub 70/Cr/sub 18/Pt/sub 12/ perpendicular medium using a focused ion beam (FIB) of Ga/sup +/. The islands have lateral size of 80 nm and have a 103 nm along track period. For comparison, we have also used the FIB to prepare isolated narrow strips of continuous media. The recording properties of the patterned and unpatterned media were evaluated using a static write/read tester.
Keywords :
chromium alloys; cobalt alloys; ferromagnetic materials; focused ion beam technology; nanolithography; perpendicular magnetic recording; platinum alloys; storage media; 103 nm; 80 nm; Co/sub 70/Pt/sub 18/Cr/sub 12/; Ga; Ga/sup +/ FIB; focused ion beam; high density patterned media; magnetic media patterning; magnetic storage; nanometer-scale magnetic structures; patterned Co/sub 70/Pt/sub 18/Cr/sub 12/ perpendicular media; read-back characteristics; recording properties; single-domain magnetic bits; static write/read tester; write characteristics; Chromium; Ion beams; Magnetic memory; Magnetic recording; Nanostructures; Perpendicular magnetic recording; Prototypes; Strips; Testing; Writing;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000593
