FE-57 HIGH-PRESSURE MOSSBAUER AND X-RAY STUDIES OF GD2FE17CX INTERSTITIAL COMPOUNDS

Authors
LI FS SUN JJ YANG CL ZHOU RJ SHEN BG MICKLITZ H ABDELMEGUID MM
Citation
Fs. Li et al., FE-57 HIGH-PRESSURE MOSSBAUER AND X-RAY STUDIES OF GD2FE17CX INTERSTITIAL COMPOUNDS, Hyperfine interactions, 94(1-4), 1994, pp. 1959-1964
Citations number
12
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
94
Issue
1-4
Year of publication
1994
Pages
1959 - 1964
Database
ISI
SICI code
0304-3843(1994)94:1-4<1959:FHMAXS>2.0.ZU;2-0
Abstract
The unit cell volume dependence of the Curie temperature of Gd2Fe17 is studied by means of high-pressure Mossbauer spectroscopy. From the pr essure dependence of the average isomer shift of Ge2Fe17 at room tempe rature, the contribution of the pure magnetovolume effect to the chang e of the average isomer shift is derived. By combining the Mossbauer m easurements of Gd2Fe17Cx with different C concentrations at room tempe rature, the change of IS in Gd2Fe17Cx is dominated by the magnetovolum e effect. The contribution of the chemical bonding effect is about 24% of that of the magnetovolume effect, but with negative sign.