Understanding nanoscale heat transfer at the head–disk interface (HDI) is necessary for
thermal management of hard disk drives (HDDs), especially for heat-assisted magnetic
recording and microwave-assisted magnetic recording. To accurately model the head
temperature profile in HDDs, it is imperative to employ a spacing-dependent heat transfer
coefficient due to the combined effects of pressurized air conduction and wave-based
phonon conduction. Moreover, while flying at near-contact, the fly height and heat transfer …