TY - JOUR
KW - High temperature superconductors
KW - Ceramic materials
KW - Oxide superconductors
KW - X-ray Diffraction
KW - Microscopic Examination - Transmission Electron Microscopy
KW - Bismuth Compounds - Phase Diagrams
KW - Bismuth Lead Strontium Lanthanum Copper Oxides
KW - Meissner Effect
AU - J.M Tarascon
AU - W.R McKinnon
AU - Y LePage
AU - K Remschig
AU - Ramamoorthy Ramesh
AU - R Jones
AU - G Pleizier
AU - G.W Hull
AB - {Structural and physical properties are reported for compounds made by simultaneous substitution of Bi by Pb and of Sr by La in the 10 K superconducting Bi cuprate Bi2-xPbxSr2-yLayCuOz. The phase diagram in the x-y plane was was established. It contains two phases separated by a region of two-phase coexistence: the O(1) phase of the starting material (x=y=0), which is pseudotetragonal, and the O(2) phase found at higher Pb concentrations, which is orthorhombic. In agreement with TEM observations, which show the disappearance of the modulation in the O(2) phase, a single crystal of Bi1.2Pb0.8Sr1.5La0.5CuO6 showed orthorhombic symmetry and no modulation by X-ray diffraction, with the space group Pnan and cell parameters a=5.328(1) Å
BT - Physica C: Superconductivity and its applications
DO - 10.1016/0921-4534(90)90637-T
LA - eng
M1 - 1-2
N1 - cited By 41
N2 - {Structural and physical properties are reported for compounds made by simultaneous substitution of Bi by Pb and of Sr by La in the 10 K superconducting Bi cuprate Bi2-xPbxSr2-yLayCuOz. The phase diagram in the x-y plane was was established. It contains two phases separated by a region of two-phase coexistence: the O(1) phase of the starting material (x=y=0), which is pseudotetragonal, and the O(2) phase found at higher Pb concentrations, which is orthorhombic. In agreement with TEM observations, which show the disappearance of the modulation in the O(2) phase, a single crystal of Bi1.2Pb0.8Sr1.5La0.5CuO6 showed orthorhombic symmetry and no modulation by X-ray diffraction, with the space group Pnan and cell parameters a=5.328(1) Å
PY - 1990
SP - 13
EP - 22
T2 - Physica C: Superconductivity and its applications
TI - Superconductivity at 27 K in modulation-free Bi2-xPbxSr2-yLayCuO6 phases with x≅y+0.2
VL - 172
SN - 09214534
ER -