Open AccessTemperature dependence of the Ho L 2 ‐edge XMCD spectra of Ho 6 Fe 23
Author(s) -
Boada Roberto,
LagunaMarco María Ángeles,
Chaboy Jesús
Publication year - 2009
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049508033931
Subject(s) - magnetic circular dichroism , magnetic moment , x ray magnetic circular dichroism , absorption edge , spectral line , enhanced data rates for gsm evolution , condensed matter physics , absorption (acoustics) , physics , materials science , nuclear magnetic resonance , chemistry , optics , telecommunications , astronomy , band gap , computer science
An X‐ray magnetic circular dichroism (XMCD) study performed at the Ho L 2,3 ‐edges in Ho 6 Fe 23 as a function of temperature is presented. It is demonstrated that the anomalous temperature dependence of the Ho L 2 ‐edge XMCD signal is due to the magnetic contribution of Fe atoms. By contrast, the Ho L 3 ‐edge XMCD directly reflects the temperature dependence of the Ho magnetic moment. By combining the XMCD at both Ho L 2 ‐ and L 3 ‐edges, the possibility of determining the temperature dependence of the Fe magnetic moment is demonstrated. Then, both μ Ho ( T ) and μ Fe ( T ) have been determined by tuning only the absorption L ‐edges of Ho. This result opens new possibilities of applying XMCD at these absorption edges to obtain quantitative element‐specific magnetic information that is not directly obtained by other experimental tools.