Comparison of one- and two-dimensional detectors on simulated and spin-stand readback waveforms

Shingled writing (SW) and two-dimensional magnetic recording (TDMR) are two complementary candidate technologies proposed to extend the life of magnetic recording. SW enables the writing of narrow tracks with a wider writer by shingling the tracks; each track partially overlaps the preceding track leaving only a fraction of that track on the medium. TDMR is the companion technology to SW that enables reading of narrower tracks with a wider reader. In this work we compare the performances of 1D and 2D detectors in the shingled writing environment, using both comprehensive channel models and spin-stand readback.

Research highlights
► Improvement to the GFP model to include variety of effects from micromagnetics.
► 1D/2D detector performance evaluation over variations of GFP model.
► 1D/2D detector performance evaluation over various levels of ISI/ITI.
► First TDMR implementation attempt on the spin-stand.