Influence of the magnetic state on the structure and thermal expansion in rare earth compounds

E. Gratz, A. Lindbaum

Publikation: Beitrag in FachzeitschriftKonferenzartikelBegutachtung

Abstract

Using x-ray powder diffraction we investigated the thermal expansion of some selected nonmagnetic compounds (YAl2, YNi2 and YCo2) and some isostructural magnetic Rare Earth-Cobalt compounds (RECo2) in the temperature range from 4K up to 450 K. By comparing the nonmagnetic Y-based compounds we could show that there is a contribution of the spin fluctuations to the thermal expansion in YCo2. In the magnetically ordering RECo2 compounds the induced 3d-magnetism gives rise to large volume anomalies at the magnetic ordering temperature Tc. Below Tc there is also a distortion of the cubic unit cell because of the interaction of the magnetically ordered RE-ions with the anisotropic crystal field.

OriginalspracheEnglisch
Seiten (von - bis)461-466
Seitenumfang6
FachzeitschriftMaterials Science Forum
Jahrgang166-169
Ausgabenummerpt 2
DOIs
PublikationsstatusVeröffentlicht - 1994
Extern publiziertJa
VeranstaltungProceedings of the 3rd European Powder Diffraction Conference. Part 2 (of 2) - Vienna, Austria
Dauer: 25 Sep. 199328 Sep. 1993

Fingerprint

Untersuchen Sie die Forschungsthemen von „Influence of the magnetic state on the structure and thermal expansion in rare earth compounds“. Zusammen bilden sie einen einzigartigen Fingerprint.

Zitieren