Microstructure and Tc-suppression in La-cuprates

Y. Horibe; Y. Inoue; Y. Koyama

doi:10.1016/S0921-4534(97)00640-0

Microstructure and Tc-suppression in La-cuprates

Y. Horibe^*, Y. Inoue, Y. Koyama

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Microstructures of La_2-xSr_xCuO₄ and La_1.6-xSr_xNd_0.4CuO₄ 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 La_1.6-xSr_xNd_0.4CuO₄ does not basically exhibit superconductivity, the Tc-suppression found in La-cuprates should be related to the appearance of the spotty phase.

Original language	English
Pages (from-to)	1071-1072
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	282-287
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(97)00640-0
Publication status	Published - 1997 Aug

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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Cite this

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title = "Microstructure and Tc-suppression in La-cuprates",

abstract = "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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doi = "10.1016/S0921-4534(97)00640-0",

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journal = "Physica C: Superconductivity and its applications",

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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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Microstructure and Tc-suppression in La-cuprates

Abstract

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