CARRIER DOPING IN THE LAYERED CUPRATE SR14CU24O41

被引：36

作者：

KATO, M

CHIZAWA, H

KOIKE, Y

NOJI, T

SAITO, Y

机构：

[1] Department of Applied Physics, Faculty of Engineering, Tohoku University, Aoba-ku, Sendai, 980-77, Aromaki Aoba

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91888-0

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have made a trial of carrier doping into the layered cuprate Sr14Cu24O41 with the CuO2 chain and the Cu2O3 plane by the partial substitution of Ca2+ for Sr2+ and the annealing in oxygen of various pressures. In Sr14-xCaxCu24O41, the electrical resistivity rho decreases with increasing x, though the temperature dependence still remains semiconductive. The magnetic susceptibility exhibits an anomalous broad hump about 70 K for x=0. Through the annealing N-2, the value of rho decreases slightly and a tiny anomaly appears about 20 K for 8.4 less than or equal to x less than or equal to 9.0.

引用

页码：1327 / 1328

页数：2

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