Decoupling of the magnetic sublattices at the compensation point inR-Fecompounds

descriptionPublicationkeyboard_double_arrow_right Article 31 Aug 2010 English Publisher:American Physical Society (APS)Journal:Physical Review B, volume 82 (issn: 1098-0121, eissn: 1550-235X,

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Authors: Boada, R.; Piquer, Cristina; Laguna-Marco, M. A.; Chaboy, Jesús;

doi: 10.1103/physrevb.82.052407

handle: 10261/47790

Decoupling of the magnetic sublattices at the compensation point inR-Fecompounds

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Abstract

The behavior of the R-Fe interaction at the magnetic compensation point of Ho0.5Lu0.5Fe2 and Er0.5Y0.5Fe2 compounds has been studied by means of x-ray magnetic circular dichroism (XMCD). The results point out that at the compensation point, the rare-earth sublattice loses completely the magnetic order whereas the Fe sublattice still presents local magnetic order. In addition, the XMCD data show that close below to the compensation point the system is in an intermediate state in which the magnetization of both magnetic sublattices are parallel to the applied magnetic field, and that the ferrimagnetic coupling is progressively restored again by decreasing the temperature.

This work was partially supported by Spanish CICYT under Grant no. MAT2008-06542-C04-01.

4 páginas, 4 figuras.-- PACS number(s): 75.50.Bb, 61.05.cj, 71.20.Lp, 78.70.Dm

Peer reviewed

Related Organizations

Spanish National Research Council
Spain
University of Zaragoza
Spain
Instituto de Ciencia de Materiales de Madrid
Spain

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