TITLE

Single-beam overwriting with melt-erasing process in an InSbTe phase-change optical disk

AUTHOR(S)
Maeda, Yoshihito; Andoh, Hisashi; Ikuta, Iaso; Nagai, Masaichi; Katoh, Yoshimi; Minemura, Hiroyuki; Tsuboi, Nobuyoshi; Satoh, Yoshio; Gotoh, Norio; Ishigaki, Masaji
PUB. DATE
March 1989
SOURCE
Applied Physics Letters;3/6/1989, Vol. 54 Issue 10, p893
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Single-beam overwriting with melt-erasing process was made in a 5.25-in.-diam phase-change optical disk using an In22Sb37Te41 recording film. In the overwriting between 2 and 3 MHz signals at the linear velocity of 3–11 m/s, a carrier to noise ratio (C/N) more than 46 dB and an erasability less than -35 dB could be obtained. This high erasability was found to be due to the melt-erasing process. This disk presents highly erasable overwriting and long data retention time supported by an activation energy of 2.3 eV and a temperature of 230 °C for crystallization of the amorphized part.
ACCESSION #
9830176

 

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