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This research aims to quantify the impact of interference and erasure from adjacent tracks in heat-assisted magnetic recording.

February 5, 2026AIP AdvancesOpen Access

Quantifying erasure and interference from adjacent tracks in heat-assisted magnetic recording

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This research aims to quantify the impact of interference and erasure from adjacent tracks in heat-assisted magnetic recording.
Conducted spin stand tests to analyze interference and erasure effects
Evaluated noise-free waveforms of adjacent and erased data tracks
Measured side reading interference and correlated it with the reader width
Side reading interference ranges from 13 to 18 dB, linked to the reader width
Adjacent track erasure reduces signal quality and increases spatial noise at data track edges
Measurements indicate significant differences in erasure effects between two medium designs, affecting their recording capabilities

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Testing reveals the effects of track interference and erasure on magnetic recording efficiency, suggesting designs need improvement.

Zheng et al. (2026) studied this question.

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