期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 37, 期 4, 页码 1872-1874出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/20.950994
关键词
high density recording; magnetic force microscopy; magnetic recording; MFM; quantitative analysis; transition position jitter
We have quantitatively analyzed magnetic force microscope images of magnetic tracks written at 10000 flux changes per mm in longitudinal magnetic recording media. In this study, transition positions and transition position jitter have been extracted as a function of the write current and compared to spin-stand measurements. jitter is important as it limits how closely transitions can be spaced. Excellent quantitative agreement is achieved. Moreover, the MFM tip provides much better spatial resolution in the cross-track direction than a read element of a head. The high resolution allows the characterization of recording parameters for simulated read elements with various widths before heads are available for experiments. This ability, which is illustrated with transition position jitter and a comparison with theory, is important to advance the recording technology.
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