X-RAY ABSORPTION-EDGE SHIFTS OF COBALT AND RARE-EARTH IONS IN RARE EARTH-COBALT INTERMETALLIC COMPOUNDS

被引：9

作者：

HATWAR, TK ^{[1
]}

MALIK, SK ^{[1
]}

GHATIKAR, MN ^{[1
]}

PADALIA, BD ^{[1
]}

机构：

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

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 95卷 / 02期

关键词：

D O I：

10.1002/pssb.2220950235

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Chemical shifts ΔE of K‐absorption edge of Co and L3‐absorption edge of Gd, Tb, and Dy in GdCo3, TbCo3, and DyCo3 intermetallic compounds are measured and effective charges on the absorbing ions are estimated. It is found that the magnitudes of ΔE and q for Co in RCo3 (R refers to rare earth ions) lie in between those reported for RCo5 and RCo2 compounds. Further, ΔE and q of Co increase with increasing number of rare earth atoms per cobalt atom (RCo5 < RCo3 < RCo2) while the magnetic moment of cobalt in these intermetallic compounds indicates the opposite trend (RCo5 > RCo3 > RCo2). Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

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页码：621 / 625

页数：5

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