Superconductivity in the new compound Sr2CuO2(CO3)1-x(BO3)x. The new method for carrier doping on layered copper-oxycarbonates

M. Uehara; H. Nakata; J. Akimitsu

doi:10.1016/0921-4534(93)90089-9

Superconductivity in the new compound Sr₂CuO₂(CO₃)_1-x(BO₃)_x. The new method for carrier doping on layered copper-oxycarbonates

M. Uehara, H. Nakata, J. Akimitsu

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

39 Citations (Scopus)

Abstract

A new copper oxide superconductor containing carbon and boron Sr₂CuO₂(CO₃)_1-x(BO₃)_x was synthesized under ambient pressure. The superconducting transition was observed for the samples with x = 015 and 0.2. The highest T_c(≈32K) determined by magnetization measurements was obtained for the sample with x = 0.15. The X-ray Rietveld analysis of this compound can be characterized by the tetragonal symmetry (I4) with a = 0.77881 (15) nm and c = 1.49681 (3) nm (x = 0.15). The crystal structure determination suggests that the crystal structure is basically the same as that of Sr₂CuO₂(CO₃).

Original language	English
Pages (from-to)	453-457
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	216
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(93)90089-9
Publication status	Published - Nov 1 1993
Externally published	Yes

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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title = "Superconductivity in the new compound Sr2CuO2(CO3)1-x(BO3)x. The new method for carrier doping on layered copper-oxycarbonates",

abstract = "A new copper oxide superconductor containing carbon and boron Sr2CuO2(CO3)1-x(BO3)x was synthesized under ambient pressure. The superconducting transition was observed for the samples with x = 015 and 0.2. The highest Tc(≈32K) determined by magnetization measurements was obtained for the sample with x = 0.15. The X-ray Rietveld analysis of this compound can be characterized by the tetragonal symmetry (I4) with a = 0.77881 (15) nm and c = 1.49681 (3) nm (x = 0.15). The crystal structure determination suggests that the crystal structure is basically the same as that of Sr2CuO2(CO3).",

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AU - Akimitsu, J.

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