Patterned media for 10 Tbit/in2 utilizing dual-section “ledge” elements
نویسندگان
چکیده
ABSTRACT A dual layer patterned element magnetic recording medium design is presented that is expected to satisfy areal densities at 10Tbit/in. Each element consists of a small high anisotropy initial layer on top of which is deposited an exchange coupled soft layer of approximately equal thickness that extends in the recording direction almost to an adjacent element. This design has two distinct advantages. Reversal by precessional switching will occur for realistic record head field rise times (100-200 ps). Thermal stability for such small elements is maintained by hard section anisotropy fields that are an order of magnitude larger than the reversal field. Here reversal mechanisms and system design are discussed in detail.
منابع مشابه
Dual-layer patterned media “ledge” design for ultrahigh density magnetic recording
magnetic recording Vitaliy Lomakin, Richard Choi, Boris Livshitz, Shaojing Li, Akihiro Inomata, and H. Neal Bertram Department of Electrical and Computer Engineering, University of California, San Diego, California 92093, USA Center for Magnetic Recording Research, University of California, San Diego, California 92093, USA Storage Systems Laboratories, Fujitsu Laboratories Ltd., Atsugi, Kanagaw...
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