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- W2142120061 endingPage "644" @default.
- W2142120061 startingPage "611" @default.
- W2142120061 abstract "▪ Abstract Areal density progress in magnetic recording is largely determined by the ability to fabricate low-noise, granular thin lm media with sufficient stability against thermal agitation to warrant long-term data storage. A key requirement is a medium microstructure with small, magnetically isolated grains to establish optimal macro- and micro-magnetic properties. A lower bound for the minimal average grain diameter, compatible with thermal stability, is imposed by the write field capability of the recording head. It is 10–12 nm assuming maximal writeable coercivities of 400 kA/m (5000 Oe). These are already achieved in today's state-of-the-art CoCr-based thin lm alloy media, leaving little room for further improvements and density gains based on continued grain size reduction. A threefold reduction in grain diameter, however, translating into a tenfold increase in areal density is theoretically possible if write field constraints can be overcome, allowing utilization of magnetically harder alloys. This review emphasizes materials and fabrication aspects behind media for extremely high-density longitudinal magnetic recording. Special attention is paid to thermal stability and write coercivity constraints. Various alternative media designs for extremely high-density recording beyond 40–100 Gbits/inch 2 are reviewed." @default.
- W2142120061 created "2016-06-24" @default.
- W2142120061 creator A5004516095 @default.
- W2142120061 creator A5077060337 @default.
- W2142120061 date "2000-08-01" @default.
- W2142120061 modified "2023-10-09" @default.
- W2142120061 title "Extremely High-Density Longitudinal Magnetic Recording Media" @default.
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