THE INFLUENCE OF INTERSTITIAL N, C AND H-ATOMS ON THE HYPERFINE FIELDS AT THE YTTRIUM AND COBALT SITES IN Y2CO17

被引：0
|
作者：
KAPUSTA, C
ROSENBERG, M
RIEDI, PC
ZUKROWSKI, J
STOCH, G
FIGIEL, H
JACOBS, TH
BUSCHOW, KHJ
机构：
[1] UNIV ST ANDREWS,DEPT PHYS & ASTRON,ST ANDREWS KY19 9SS,SCOTLAND
[2] UNIV MIN & MET KRAKOW,DEPT SOLID STATE PHYS,PL-30059 KRAKOW,POLAND
[3] PHILIPS RES LABS,5600 JA EINDHOVEN,NETHERLANDS
[4] LEIDEN UNIV,KAMERLINGH ONNES LAB,2300 RA LEIDEN,NETHERLANDS
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 182卷 / 02期
关键词：
D O I：
10.1016/0925-8388(92)90607-B
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The spin echo nuclear magnetic resonance spectra of Y2Co17Ax (A = N, C, H) are presented. On the basis of the satellite pattern of the Y-89 spectra, we have deduced that N and C atoms occupy the 9e sites (rhombohedral compounds) or 6h sites (hexagonal compounds) around the yttrium site. A decrease in the hyperfine fields at the yttrium and cobalt sites caused by neighbouring interstitial atoms is observed, with a magnitude dependent on the site and the type of interstitial atom. The effect is discussed in terms of the influence of N, C and H atoms on the local electronic structure at the yttrium and cobalt sites and compared with the effect observed in the RE2Fe17-based compounds (RE, rare earth).
引用
收藏
页码：331 / 341
页数：11
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