(C0.35CU0.65)SR2(Y0.73CE0.27)2CU2OX - A NEW SUPERCONDUCTOR CONTAINING CO3

被引：21

作者：

MIYAZAKI, Y ^{[1
]}

YAMANE, H ^{[1
]}

KOBAYASHI, N ^{[1
]}

HIRAI, T ^{[1
]}

NAKATA, H ^{[1
]}

TOMIMOTO, K ^{[1
]}

AKIMITSU, J ^{[1
]}

机构：

[1] AOYAMA GAKUIN UNIV,DEPT PHYS,TOKYO,TOKYO 157,JAPAN

来源：

PHYSICA C | 1992年 / 202卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90308-Y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new "1222"-type compound containing carbonates, (C0.35Cu0.65)Sr2(Y0.73Ce0.27)2Cu2Ox, was synthesized at 1303 K under an atmosphere of 02 (80%)-CO2 (20%) (partial pressure of CO2: PCO2=0.020 MPa). The sample annealed at 1023 K under the high oxygen pressure of 90 MPa has a superconducting transition temperature, T(c), of 18 K and a superconducting volume fraction of about 10% at 5 K. The structure of the superconductor was analyzed using the Rietveld method for the X-ray powder diffraction pattern. The refined lattice parameters were a = 3.8272 (1), b = 3.8 313 (1) and c = 27.707 7 (6) angstrom.

引用

页码：162 / 166

页数：5

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