Interplay between er and co magnetism in ErCo2

TitleInterplay between er and co magnetism in ErCo2
Publication TypeJournal Article
Year of Publication2008
AuthorsHerrero-Albillos J, Paudyal D, Bartolome F, Garcia LM, Pecharsky VK, Gschneidner KA, Young AT, Jaouen N, Rogalev A
Journal TitleJournal of Applied Physics
Date PublishedApr
Type of ArticleProceedings Paper
ISBN Number0021-8979
Accession NumberISI:000255043200558
Keywordscopper, intermetallics, K-EDGE, polarization, RCO2 LAVES PHASES

First principles calculations within the tight binding linear muffin tin orbital method confirm the ferrimagnetic coupling between the Er 4f and Co 3d moments in the magnetically ordered phase and the change of sign of the Co 3d magnetization across the magnetostructural transition. Both the experimental x-ray magnetic circular dichroism measurements and theoretical results show that the influence of the rare-earth moment on the Co sp band is so strong that the polarization of the sp band does not follow that of the 3d band, but is determined by the Er sublattice magnetization, both in the magnetically ordered and paramagnetic states.

Alternate JournalJ. Appl. Phys.