MAGNETISM AND MIXED-VALENCE IN SOME R2M3X5 COMPOUNDS - R = CE, EU, M = D METALS, X = SI, GE

被引：10

作者：

GODART, C

GUPTA, LC

TOMY, CV

PATIL, S

NAGARAJAN, R

BEAUREPAIRE, E

VIJAYARAGHAVAN, R

机构：

[1] TATA INST FUNDAMENTAL RES,BOMBAY 400005,INDIA

[2] UNIV STRASBOURG 1,GEMM,F-67070 STRASBOURG,FRANCE

来源：

PHYSICA B | 1990年 / 163卷 / 1-3期

关键词：

D O I：

10.1016/0921-4526(90)90156-O

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Lattice parameters, magnetic susceptibility and LIII edge measurements have been performed as a function of temperature on a number of new materials of the chemical composition R2M3X5 (R = Ce, Eu; M = Ni, Rh, Pd, Ir; X = Si, Ge). Valence instabilities have been observed in Ce2Rh3Si5 and Ce2Ir3Si5. Eu2Ni3Si5 is mixed valent as revealed by LIII edge and Mössbauer measurements; and the valence of Eu varies between 2.75 and 2.60 in the temperature range 10-300 K. Other materials show magnetic ordering. © 1990.

引用

页码：163 / 166

页数：4

共 5 条

[1] STRUCTURE, SUPERCONDUCTIVITY AND MAGNETISM OF NEW RARE EARTH-RHODIUM SILICIDES RE2RH3SI5 OF U2CO3SI5-TYPE [J].