Hbs tree t-High density magnetic recording is investigated for a combination of single-layered perpendicular media and ring-type heads. Medium magnetic properties (Hc and Mr/Ms) are improved by introducing a dual underlayer structure. Readwrite experiments show that the linear recording resolution (D5J increases drastically with decreasing the magnetic spacing. D,, values of 190 -220 kFCI are observed using a flying MR head at an estimated magnetic spacing of 40 nm. Using contact recording, even higher resolution of D50*=300 kFCI is confirmed. Side-writing and side-erasing can be reduced below 0.2 pn by employing a narrow gap write head with trimmed sharp track edge, which shows a possibility of track density greater than 25 kTPI. The recording areal density, thus, can he increased to 10 Gbhn' level with the present recording system.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.