caa a22 4500 445380187 CHVBK 20180317143015.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10948-011-1215-4 doi (NATIONALLICENCE)springer-10.1007/s10948-011-1215-4 Enhanced Superconductivity of the Pb-Based 1212 Cuprates in the (Pb0.75S0.25)(Sr2− x Ba x )(Y0.4Ca0.6)Cu2O z System by High-Pressure O2 Annealing [Elektronische Daten] [Masashi Tanaka, Hiroyuki Sasakura, Yoshiya Akagi, Shigeki Tsukui, Motoaki Adachi] We have already reported on substitution effects of Ba for Sr in the sulfur contained Pb-based 1212 compound with the composition of (Pb0.75S0.25)(Sr2−x Ba x ) (Y0.4Ca0.6)Cu2O z . It was found that each sample with x=0.3-0.6 showed a resistivity drop originating from superconductivity, and the highest onset temperature of the drop was about 32 K for a sample with x=0.5, but the volume fraction was very small. More recently, we have investigated effect of high-pressure O2 annealing on superconductivity of the Ba-substituted samples with x=0.4-0.6. As a result, the sample with x=0.5 is found to show an onset of the resistivity drop at the highest temperature of about 41.7 K and it shows an onset of the diamagnetic signal at about 42.0 K. These transition temperatures are higher by ∼10K than those of the previously reported sample with x=0.5. Moreover, the superconducting volume fraction is increasing more by the high-pressure O2 annealing. These results indicate that the high-pressure O2 annealing effectively promotes superconductivity of the present (Pb0.75S0.25)(Sr2−x Ba x )(Y0.4Ca0.6)Cu2O z system. Springer Science+Business Media, LLC, 2011 Pb-based 1212 cuprate nationallicence Sulfur containing nationallicence (Pb0.75S0.25)(Sr,Ba)2(Y,Ca)Cu2O z system nationallicence High-pressure O2 annealing nationallicence Superconductivity nationallicence Tanaka Masashi Department of Physics, Shizuoka University, 836 Ohya, Suruga-ku, 422-8529, Shizuoka, Japan aut Sasakura Hiroyuki Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, 431-3192, Hamamatsu, Shizuoka, Japan aut Akagi Yoshiya Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, 431-3192, Hamamatsu, Shizuoka, Japan aut Tsukui Shigeki Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, 599-8531, Sakai, Osaka, Japan aut Adachi Motoaki Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, 599-8531, Sakai, Osaka, Japan aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/7(2011-10-01), 2037-2039 1557-1939 24:7<2037 2011 24 10948 https://doi.org/10.1007/s10948-011-1215-4 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1215-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tanaka Masashi Department of Physics, Shizuoka University, 836 Ohya, Suruga-ku, 422-8529, Shizuoka, Japan aut NATIONALLICENCE 700 1- Sasakura Hiroyuki Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, 431-3192, Hamamatsu, Shizuoka, Japan aut NATIONALLICENCE 700 1- Akagi Yoshiya Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, 431-3192, Hamamatsu, Shizuoka, Japan aut NATIONALLICENCE 700 1- Tsukui Shigeki Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, 599-8531, Sakai, Osaka, Japan aut NATIONALLICENCE 700 1- Adachi Motoaki Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, 599-8531, Sakai, Osaka, Japan aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/7(2011-10-01), 2037-2039 1557-1939 24:7<2037 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer