MAGNETIC PAIR-BREAKING EFFECTS - MOMENT FORMATION AND CRITICAL DOPING LEVEL IN SUPERCONDUCTING LA1.85SR0.15CU1-XAXO4 SYSTEMS (A = FE, CO, NI, ZN, GA, AL)

被引：327

作者：

GANG, X

CIEPLAK, MZ

XIAO, JQ

CHIEN, CL

机构：

[1] JOHNS HOPKINS UNIV, DEPT PHYS & ASTRON, BALTIMORE, MD 21218 USA

[2] POLISH ACAD SCI, INST PHYS, PL-02668 WARSAW, POLAND

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.42.8752

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have conducted a systematic study on the effect of Cu-site doping in La1.85Sr0.15CuO4 system. The relations between Tc and doping level as well as the critical doping levels xc have been determined accurately for the Fe-, Co-, Ni-, Zn-, Ga-, and Al-doped systems. Every dopant either carries an intrinsic magnetic moment or induces a net moment on the Cu-O2 plane. The size of the moment is correlated with the suppression of superconductivity, consistent with the magnetic-pair-breaking effect. The ground states of the dopants have also been determined. © 1990 The American Physical Society.

引用

页码：8752 / 8755

页数：4

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