TY - JOUR
T1 - Microstructure and Tc-suppression in La-cuprates
AU - Horibe, Y.
AU - Inoue, Y.
AU - Koyama, Y.
PY - 1997/8
Y1 - 1997/8
N2 - Microstructures of La2-xSrxCuO4 and La1.6-xSrxNd0.4CuO4 around x=0.12 at 12K have been examined by transmission electron microscopy. In both oxides, a spotty phase with the Pccn/LTT tilt appears inside a LTO domain, in addition to a line phase along a domain boundary. A difference between these oxides is that a volume fraction of the spotty phase to the LTO one in La-Sr-Nd-Cu-O is much larger than that in La-Sr-Cu-O. Because La1.6-xSrxNd0.4CuO4 does not basically exhibit superconductivity, the Tc-suppression found in La-cuprates should be related to the appearance of the spotty phase.
AB - Microstructures of La2-xSrxCuO4 and La1.6-xSrxNd0.4CuO4 around x=0.12 at 12K have been examined by transmission electron microscopy. In both oxides, a spotty phase with the Pccn/LTT tilt appears inside a LTO domain, in addition to a line phase along a domain boundary. A difference between these oxides is that a volume fraction of the spotty phase to the LTO one in La-Sr-Nd-Cu-O is much larger than that in La-Sr-Cu-O. Because La1.6-xSrxNd0.4CuO4 does not basically exhibit superconductivity, the Tc-suppression found in La-cuprates should be related to the appearance of the spotty phase.
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U2 - 10.1016/S0921-4534(97)00640-0
DO - 10.1016/S0921-4534(97)00640-0
M3 - Article
AN - SCOPUS:0031213012
SN - 0921-4534
VL - 282-287
SP - 1071
EP - 1072
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 2
ER -