Preliminary Investigation for a Cylindrical Magnetic Storage System

Hiroshi Yamada, Takehito Shimatsu, Isao Watanabe, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A cylindrical magnetic storage system was built and preliminary measurements were made. The system is expected to overcome the writing problems at high areal densities caused a by write head skew angle and is aimed at the realization of 1-Tb/in2 2-Gb/s perpendicular magnetic recording. Cylindrical substrates, sputtering equipment, and a read/write tester for a cylindrical magnetic storage were fabricated. For this preliminary investigation, the length and diameter of the cylindrical substrates were 1 in. Thin films (protective layer, storage layer, seed layer, etc.) were deposited by rotating the cylindrical substrate during the sputtering process. Fundamental read/write characteristics were measured using an 8-mm video-tape-recorder metal-in-gap head and a merged giant magnetoresistive head with a pico-slider.

Original languageEnglish
Pages (from-to)3619-3621
Number of pages3
JournalIEEE Transactions on Magnetics
Volume39
Issue number6
DOIs
Publication statusPublished - 2003 Nov 1

Keywords

  • Cylindrical magnetic storage media
  • Cylindrical substrate
  • Perpendicular magnetic recording
  • Skew angle
  • Terabit storage

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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