https://doi.org/10.1140/epjb/e2009-00231-3
Spin density wave dislocation in chromium probed by coherent X-ray diffraction
1
Laboratoire de Physique des Solides, Univ. Paris-Sud, CNRS, UMR 8502, 91405 Orsay Cedex, France
2
Synchrotron SOLEIL, L'Orme des merisiers, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France
3
Instituto de Física “Gleb Wataghin”, C.P. 6165, UNICAMP, 13083-970 Campinas, SP, Brazil
4
LTPCM (CNRS-UMR 5614), ENSEEG-Domaine Universitaire, BP 75, 38402 Saint Martin d'Hères Cedex, France
5
Brookhaven National Lab, Upton, NY, 11973, USA
Corresponding author: a jacques@lps.u-psud.fr
Received:
29
September
2008
Revised:
20
May
2009
Published online:
8
July
2009
We report on the study of a magnetic dislocation in pure chromium. Coherent X-ray diffraction profiles obtained on the incommensurate Spin Density Wave (SDW) reflection are consistent with the presence of a dislocation of the magnetic order, embedded at a few micrometers from the surface of the sample. Beyond the specific case of magnetic dislocations in chromium, this work may open up a new method for the study of magnetic defects embedded in the bulk.
PACS: 42.25.Kb – Coherence / 61.72.Dd – Experimental determination of defects by diffraction and scattering / 75.30.Fv – Spin-density waves
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009