TY - JOUR
T1 - Superconductor with Tc = 117 K in the Bi-Pb-Sr-Ca-Cu-O system
AU - Takada, Jun
AU - Kitaguchi, Hitoshi
AU - Egi, Toshio
AU - Oda, Kiichi
AU - Miura, Yosinari
AU - Mazaki, Hiromasa
AU - Ikeda, Yasunori
AU - Hiroi, Zenji
AU - Takano, Mikio
AU - Tomii, Yoichi
N1 - Funding Information:
The authors appreciatee ncouragementbsy and discussionw ith Emeritus Professor T. Takada and also help in the experimentsb y T. Unezaki, S. Kaneda and F. Shitani. This work was partly supported by a Grant-in-Aid for ScientificR esearcho n priority area "Chemistryo f New Superconductors"
PY - 1990/9/15
Y1 - 1990/9/15
N2 - The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. Tc = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 Å to 37.21 Å accompanies the rise in Tc from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi2-x+yPbxSr2-yCu1+y/4Oz.
AB - The superconducting properties of the so-called 2223 phase in the Pb-Bi-Sr-Ca-Cu-O system have been studied as a function of composition and heat treatment. Tc = 115-117 K has been attained quite reproducibly for starting compositions of Pb/ (Bi+Pb) ≥ 0.30. An increase in the c-axis length from 37.10 Å to 37.21 Å accompanies the rise in Tc from 105 K to 117 K. We suggest that a considerable portion of Pb is located at the Sr-site as seen in Bi2-x+yPbxSr2-yCu1+y/4Oz.
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U2 - 10.1016/0921-4534(90)90319-A
DO - 10.1016/0921-4534(90)90319-A
M3 - Article
AN - SCOPUS:0025489087
VL - 170
SP - 249
EP - 253
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3-4
ER -