Magnetically coupled MO double layer suitable for field modulation overwriting

Norio Ota; Katsusuke Shimazaki; Satoru Ohnuki; Hideo Fujiwara; Michiaki Hashimoto

doi:10.1117/12.137547

13 August 1992 Magnetically coupled MO double layer suitable for field modulation overwriting

Norio Ota, Katsusuke Shimazaki, Satoru Ohnuki, Hideo Fujiwara, Michiaki Hashimoto

Proceedings Volume 1663, Optical Data Storage; (1992) https://doi.org/10.1117/12.137547
Event: Optical Data Storage Topical Meeting, 1992, San Jose, CA, United States

Abstract

Exchange coupled MO films like (PtCo/TbFeCo) and TbFeCo/TbFeCo) enable a very small external field of only 50 Oe for erase and write. Those are suitable media for a field modulation overwriting. In plane magnetized PtCo or low perpendicular anisotropy TbFeCo acts as the external field enhancing layer through exchange coupling with the TbFeCo recording layer.

Citation Download Citation

Norio Ota, Katsusuke Shimazaki, Satoru Ohnuki, Hideo Fujiwara, and Michiaki Hashimoto "Magnetically coupled MO double layer suitable for field modulation overwriting", Proc. SPIE 1663, Optical Data Storage, (13 August 1992); https://doi.org/10.1117/12.137547

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