After more than 30 years of research, hard disk drives using perpendicular recording are
finally commercially available. This review is a follow-up of a review written in 1999 and …

Microwave assisted magnetic recording (MAMR) is one of the key candidate technologies
for ten terabits class magnetic recording. In this article, we review MAMR technology and its …

Wrap-around shielded writers combining both trailing shield and side shield have been
studied both by modeling and by experiments. WAS design is demonstrated to have …

The effect of soft layer thickness (tSoft) of CoTaZr–SiO2 and low Pt-containing CoCrPtO
layers on media properties in hard/soft (H/S) stacked media is compared to media properties …

In this paper, the ac magnetic field distribution of a trailing-edge shielded SPT head were
successfully investigated by using a newly developed frequency-modulated magnetic force …

This paper presents micromagnetic modeling results in a perpendicular magnetic recording,
which consists of a single-pole head and double-layered media. To know the inplane head …

Adding Pt into CoCr-oxide alloy for controlling magnetic softness in a soft layer on hard/soft
(H/S) stacked composite media significantly affects magnetic properties and microstructure …

Three-dimensional write field distributions of trailing-edge shielded and unshielded
perpendicular write heads with applied direct current write currents were studied by …

The performance of two types of trailing shield perpendicular writers with either double coil
or single coil are investigated. It has been found that signal-to-noise ratio (SNR) …

thus partially extending the limit of LMR. A significant increase of areal density was obtained
by introducing PMR technology with a thicker magnetic recording layer, which provides …