Kondo screening of the spin and orbital magnetic moments of Fe impurities in Cu
Joly, Lilian (Université de Strasbourg)
Kappler, J. P. (Synchrotron-SOLEIL)
Ohresser, P. (Synchrotron-SOLEIL)
Sainctavit, Philippe (Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC))
Henry, Y. (Université de Strasbourg)
Gautier, F. (Université de Strasbourg)
Schmerber, G. (Université de Strasbourg)
Kim, D. J. (University of Warwick)
Goyhenex, C. (Université de Strasbourg)
Bulou, H. (Université de Strasbourg)
Bengone, O. (Université de Strasbourg)
Kavich, J. J. (Institut Català de Nanociència i Nanotecnologia)
Gambardella, Pietro (ETH Zürich)
Scheurer, F. (Université de Strasbourg)

Date:	2017
Abstract:	We use x-ray magnetic circular dichroism to evidence the effect of correlations on the local impurity magnetic moment in an archetypal Kondo system, namely, a dilute Cu:Fe alloy. Applying the sum rules on the Fe L2,3 absorption edges, the evolution of the spin and orbital moments across the Kondo temperature are determined separately. The spin moment presents a crossover from a nearly temperature-independent regime below the Kondo temperature to a paramagneticlike regime above. Conversely, the weak orbital moment shows a temperature-independent behavior in the whole temperature range, suggesting different Kondo screening temperature scales for the spin and orbital moments.
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Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Kondo effect
Published in:	Physical review B, Vol. 95, Issue 4 (January 2017) , art. 41108, ISSN 2469-9969

DOI: 10.1103/PhysRevB.95.041108

5 p, 227.7 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles