Abstract
IN this paper some observations are presented on an anomalous current in aluminum-carbon-aluminium (Al-C-Al) sandwiches, at room temperature, which in several respects behaves in the same way as the Josephson current might be expected to do. At first the switching effect was studied in Al-C-Al sandwiches discovered by Ovshinsky1 and Pearson2 in chalcogenide glasses and amorphous oxides. In carbon sandwiches subjected to proper electrical pulsing, changes in resistance of a factor of 1,000 were found, the changes being reversible and with a memory time of the order of a few days3.
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References
Ovshinsky, S. R., Phys. Rev. Lett., 21, 1450 (1968).
Pearson, A. D., and Miller, C. E., Appl. Phys. Lett., 14, 9 (1969).
Antonowicz, K., Cacha, L., and Turlo, J., Carbon, 11, 1 (1973).
Proc. Symp. Semiconductor Effects in Amorphous Solids (edit. by Doremus, W.) (North-Holland, Amsterdam, 1970).
Pryor, R. W., and Theuisch, H. K., J. Non-crys. Solids, 7, 181 (1972).
Josephson, B. D., Phys. Lett., 1, 251 (1962).
Jaklewic, R. C., Lambe, J., Mercereau, J. E., and Silver, A. H., Phys. Rev., 140, A 1628 (1965).
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ANTONOWICZ, K. Possible superconductivity at room temperature. Nature 247, 358–360 (1974). https://doi.org/10.1038/247358a0
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DOI: https://doi.org/10.1038/247358a0
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