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Magneto-Optical Recording Performance and Fabrication Conditions in Magneto-Optical Recording Disks

  • Takehiko Yorozu (a1), Takashi Satoh (a2), Yukinobu Yoneyama (a2), Hiroyuki Tanaka (a2) and Yuji Takatsuka (a2)...

Abstract

In order to clarify the correlations between recording performances and fabrication processes in magneto-optical recording media, magnetic switching processes of TbFeCo films are studied. For a trilayer structure, with a thick magnetic layer, carrier to noise ratio(CNR) indicates maximum value for the composition with compensation temperature(Tcomp) being near room temperature. In a quadrilayer structure, on the other hand, where a thinner magnetic layer and Al reflector are employed, CNR indicates maximum vaiue for transition-metal(TM) rich composition with iower coercive force. Studies are made to interpret the results In terms of the difference in magnetic properties.

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Magneto-Optical Recording Performance and Fabrication Conditions in Magneto-Optical Recording Disks

  • Takehiko Yorozu (a1), Takashi Satoh (a2), Yukinobu Yoneyama (a2), Hiroyuki Tanaka (a2) and Yuji Takatsuka (a2)...

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