TY - JOUR
T1 - Increase of Tc in HgBa2CuOy by reducing treatment
AU - Itoh, Makoto
AU - Tokiwa-Yamamoto, Ayako
AU - Adachi, Seiji
AU - Yamauchi, H.
PY - 1993/7/15
Y1 - 1993/7/15
N2 - The superconductivity of HgBa2CuOy annealed in various reducing as well as oxidizing atmospheres was investigated. The assintered HgBa2CuOy specimens prepared by solid state reaction starting with mono-oxides of Hg, Ba and Cu exhibited superconductivity at 90 K. It was found that the superconductivity critical temperature (Tc) increased up to 96 K after a reducing treatment of the as-sintered specimen, whereas annealing of the specimen in high-pressure oxygen gas resulted in a decrease of Tc.
AB - The superconductivity of HgBa2CuOy annealed in various reducing as well as oxidizing atmospheres was investigated. The assintered HgBa2CuOy specimens prepared by solid state reaction starting with mono-oxides of Hg, Ba and Cu exhibited superconductivity at 90 K. It was found that the superconductivity critical temperature (Tc) increased up to 96 K after a reducing treatment of the as-sintered specimen, whereas annealing of the specimen in high-pressure oxygen gas resulted in a decrease of Tc.
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U2 - 10.1016/0921-4534(93)90589-I
DO - 10.1016/0921-4534(93)90589-I
M3 - Article
AN - SCOPUS:0027624637
SN - 0921-4534
VL - 212
SP - 271
EP - 273
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 3-4
ER -