Spatial resolution of domain copying in a magnetic domain expansion readout disk

P.W.M. Blom, J.J.L. Horikx, P.J.H. Bloemen, C.A. Verschuren, H.W. Kesteren, van, H. Awano, N. Ohta

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Samenvatting

In a magnetic amplifying magnetooptical system (MAMMOS) disk, the copying process of a magnetic domain from the recording layer into the readout layer is investigated by using a laser spot diameter of 0.66 µm. Interference between neighboring bits occurs when the spatial resolution of the copy process is larger than half the domain size. It is observed that a reduction of the readout power from 2.3 to 2.0 mW corresponds to a decrease of the copy window from 0.5 to 0.06 µm. As a result, at 2.0 mW packed magnetic domains with a width of only 0.11 µm have been resolved without interference by using domain expansion
Originele taal-2Engels
Pagina's (van-tot)3860-3864
TijdschriftIEEE Transactions on Magnetics
Volume37
Nummer van het tijdschrift5
DOI's
StatusGepubliceerd - 2001

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