Engineering topics
Li, Guobao
Publications and source records attributed to Li, Guobao.
Trigonal-Planar Low-Spin Co 2+ in a Layered Mixed-Polyhedral Network from Topotactic Reduction
Abstract not provided
Zhou, Lijia↗
Superconductivity in Perovskite Ba{sub 0.85−x}La{sub x}Pr{sub 0.15}(Bi{sub 0.20}Pb{sub 0.80})O{sub 3−δ}
The perovskites Ba{sub 0.85−x}La{sub x}Pr{sub 0.15}(Bi{sub 0.20}Pb{sub 0.80})O{sub 3−δ} (0.0 ≤ x ≤ 0.07) have been synthesized by traditional solid-state method. They crystallize in P1 space group confirmed by x-ray and rotational electron diffraction data. X-ray photoelectron spectroscopy data indicate that the valences of bismuth are + 3 and + 5, while the valences of lead are + 2 and + 4 in this solid solution. They all show superconductivity. The T{sub c}{sup zero} (the highest temperature at which the sample shows zero electrical resistivity) decreases with an increase of La in the sample.
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗