Write-Erase Mechanism of Indium-Antimony Optical Disk Medium


Written and erased bits of the In-Sb phase change type optical disk medium were studied using transmission electron microscopy (TEN) and electron probe microanalysis (EPMA). Both the bits were separated into inner and outer areas and were composed of only rhombohedral Sb crystals and zinc blende In50Sb50 crystals. The difference between the two bits were in crystal size and atomic distribution of the inner area. Models of the writing and erasing processes were derived from these observations and the In-Sb phase diagram. With these models, the thicknesses, grain sizes and optical contrasts of the both bits were consistently explained.

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  1. 1

    J. Feinleib, J. de Neufville, S. C. Moss and S. Ovshinsky, Appl. Phys. Lett., 18, 254 (1971).

    CAS  Article  Google Scholar 

  2. 2

    M. Takenaga, N. Yamada, S. Ohara, K. Nishiuchi, M. Nagashima, T. Kashihara, S. Nakamura and T. Yamashita, Proceedings of SPIE on Optical Storage Media, 420, 173 (1983).

    CAS  Article  Google Scholar 

  3. 3

    M. Chen, K. Rubin, V. Marrello and U. G. Gerber, Proceedings of Topical Meeting on Optical Data Storage, TuA2 (1984).

  4. 4

    N. Koshino, M. Maeda, Y. Goto, K. Itoh and S. Ogawa, Proceedings of SPIE on Optical Mass Data Storage, 529, 40 (1985).

    CAS  Article  Google Scholar 

  5. 5

    Y. Goto, K. Utsumi, M. Maeda, N. Koshino and K. Itoh, Proceedings of the 32nd Spring Meeting of the Japan Society of Applied Physics and the Related societies, 1p-P-2 (1985).

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Goto, Y., Utsumi, K., Ushioda, A. et al. Write-Erase Mechanism of Indium-Antimony Optical Disk Medium. MRS Online Proceedings Library 74, 251 (1986). https://doi.org/10.1557/PROC-74-251

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