MAGNETIC-INTERACTIONS OF GD IN GDBA2(CU1-XNIX)3OY COMPOUNDS

被引：22

作者：

NAKAMURA, F

OCHIAI, Y

SHIMIZU, H

NARAHARA, Y

机构：

[1] UNIV TSUKUBA,INST MAT SCI,TSUKUBA,IBARAKI 305,JAPAN

[2] SCI UNIV TOKYO,FAC SCI & TECHNOL,NODA,CHIBA 278,JAPAN

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.42.2558

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron-spin resonance (ESR) and dc-susceptibility are measured for GdBa2Cu3Oy compounds. From the Curie-Weiss susceptibility and the frequency dependence of the linewidth, we determine Gd dipolar fields of about 3 kOe and exchange fields of about 9 kOe in this system. In order to make the origin of the exchange fields clear, ESR measurements are also performed for Ni-doped compounds. The Gd linewidths and the Néel temperature depend on the Ni concentrations. The origin of the exchange field in GdBa2Cu3Oy compounds is discussed on the basis of the results obtained. © 1990 The American Physical Society.

引用

页码：2558 / 2561

页数：4

共 17 条

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