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Conferences > CLEOPR > 2001 > WB1 > WB1_5
  • The 4th Pacific Rim Conference on Lasers and Electro-Optics
  • Technical Digest Series (Optica Publishing Group, 2001),
  • paper WB1_5

Advanced MO Materials and Storage Devices Toward 100Gb/in2

Norio Ohta and Hiroyuki Awano

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Abstract

Magneto-optical (MO) disks possess the advantage of high-density recording compared with nonmagnetic optical disks, because MO recording is similar to the perpendicular magnetic recording of hard disk. The high-density storage requires very tiny domain recording and the MO signal then decreases rapidly with decreasing domain area. The key to achieving high-density recording is enhancement of the small MO signal using techniques like such as giant magneto resistance (GMR). As a solution, the magnetic domain expansion readout method has already been proposed 1-4).

© 2001 IEEE

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