57Fe Mo¨ssbauer spectroscopy study of the magnetic properties of R2Fe14B compounds (R=Ce, Nd, Gd, Y)
作者:
H. M. van Noort,
D. B. de Mooij,
K. H. J. Buschow,
期刊:
Journal of Applied Physics
(AIP Available online 1985)
卷期:
Volume 57,
issue 12
页码: 5414-5419
ISSN:0021-8979
年代: 1985
DOI:10.1063/1.334865
出版商: AIP
数据来源: AIP
摘要:
57Fe Mo¨ssbauer spectra were taken at 25 and 293 K on four representative specimens of compounds of the series R2Fe14B (R=Ce, Nd, Gd, and Y). In all these cases it proved possible to analyze the spectra in terms of six subspectra associated with the six crystallographically nonequivalent Fe sites in the tetragonal R2Fe14B unit cell. Assuming a linear relation between the observed hyperfine fields and magnetic moments it follows from our analysis that, although the average Fe moment in R2Fe14B is equal to that of &agr;‐Fe, there are Fe sites that give rise to moments much higher and much lower than the average value of 2.2 &mgr;B/Fe.
点击下载:
PDF
(376KB)
返 回