New superconducting lead cuprate with 1201 structure, (Pb0.5B0.5) (SrLa)CuOz |
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| Authors: | Hiroyuki Sasakura Yoshiya Akagi Motoaki Adachi |
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| Affiliation: | a Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan
b Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan |
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| Abstract: | New Pb-based superconducting cuprate with the 1201 structure has been synthesized in the (Pb1 − yBy)(Sr2 − xLax)CuOz system. From X-ray powder diffraction study, the almost-single 1201 phase sample is found to be obtained at x = 1.0 and y = 0.5 for the nominal composition of (Pb1 − yBy)(Sr2 − xLax)CuOz. The crystal structure has a tetragonal symmetry with the lattice parameters of a = 0.3779 nm and c = 0.8654 nm. The sample shows an onset of superconductivity at about 32 K as measured by the temperature dependence of the DC magnetic susceptibility. |
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| Keywords: | 74.72. jt |
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