A very rapid thermal annealing technique has been employed on sputter-deposited YBaCuO films. After an O2 anneal (with or without a N2 preanneal) at temperatures as high as 920 °C for 8–12 s, films on (100)Si and on SiO2 /Si substrates exhibited superconductivity onsets above 95 K and zero resistance in the range 40–66 K.
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Aslam et al. (1988) studied this question.
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