COMPOSITION DEPENDENCE OF THE PRESSURE EFFECT ON TC IN (YB0.7CA0.3)(BA0.8SR0.2)2CU3OZ

被引：13

作者：

MIYATAKE, T

WADA, T

KOSUGE, M

YAEGASHI, Y

ICHINOSE, A

YAMAUCHI, H

KOSHIZUKA, N

MORI, N

TANAKA, S

机构：

[1] INT SUPERCONDUCT TECHNOL CTR,SUPERCONDUCT RES LAB,KOTO KU,TOKYO 135,JAPAN

[2] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.44.11971

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of pressure on the superconducting transition temperature T(c) of (Yb0.7Ca0.3) (Ba0.8Sr0.2)2Cu3Oz, is investigated for oxygen contents z from z = 6.43 to z = 6.78. The pressure derivative dT(c)/dP shows decreasing positive values for the hole-concentration region where T(c) increases with the hole concentration in the CuO2 plane, p(pl) and negative constant values for the region where T(c) decreases with p(pl). The sign and magnitude of dT(c)/dP may be determined by not only the carrier type but also pressure-induced enhancements of both the hole concentration and intraplane coupling in the CuO2 plane.

引用

页码：11971 / 11976

页数：6

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