Ultra-High Density Recording using Combined Perpendicular and Longitudinal Modes
1997; Volume: 21; Issue: S_2_PMRC_97_2 Linguagem: Inglês
10.3379/jmsjmag.21.s2_269
ISSN1880-4004
Autores Tópico(s)Semiconductor Quantum Structures and Devices
ResumoA recording scheme employing combined perpendicular and longitudinal modes is proposed here. An isolated transition is composed of a regular longitudinal transition and a pulse magnetization in the perpendicular direction. The perpendicular component directs the short wavelength flux favorably toward the head. The isolated pulse in this recording mode has a similar waveform to that of a longitudinal medium but with greatly reduced PW50. Furthermore, the combined perpendicular and longitudinal recording offers improved thermal stability as well as channel compatibility with existing recording systems. Methods to achieve this recording mode by controlling the medium's orientation ratio are also discussed.
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