High magnetization exchange-couple double-layer TbFeCo for magnetic flux reading optical recording

Authors
Lin, CC Lai, CH Chen, BM Shieh, HPD
Citation
Cc. Lin et al., High magnetization exchange-couple double-layer TbFeCo for magnetic flux reading optical recording, IEEE MAGNET, 37(4), 2001, pp. 1399-1402
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
1399 - 1402
Database
ISI
SICI code
0018-9464(200107)37:4<1399:HMEDTF>2.0.ZU;2-7
Abstract
High magnetization (Mr) and enhanced coercivity magneto-optical (MO) record ing media TbFeCo (TFC) were investigated for hybrid magnetic flux reading/o ptical recording due to their large magnetic flux. To increase the stabilit y of high Mr TFC media, dual-layer disks composed of TM-rich readout layer with saturation magnetization (Ms) = 370 emu/cm(3) and RE-rich memory layer were fabricated. Coercivity and interface energy between double layers as a function of active layer thickness were examined. By simulating thermo-ma gnetic writing, the dual-layer media were shown to be applicable for optica l writing/magnetic flux reading recording.