Spin polarization of Ru in superconducting Ba(Fe0.795Ru0.205)(2)As-2 studied by x-ray resonant magnetic scattering

TitleSpin polarization of Ru in superconducting Ba(Fe0.795Ru0.205)(2)As-2 studied by x-ray resonant magnetic scattering
Publication TypeJournal Article
Year of Publication2013
AuthorsKim MG, Soh J, Lang J, Dean MPM, Thaler A, Bud'ko SL, Canfield PC, Bourret-Courchesne E, Kreyssig A, Goldman AI, Birgeneau RJ
Journal TitlePhysical Review B
Volume88
Pages014424
Date Published07
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000322142900001
Keywordsdiffraction, order, transition
Abstract

We have employed the x-ray resonant magnetic scattering (XRMS) technique at the Ru L-2 edge of the Ba(Fe1-xRux)(2)As-2 (x = 0.205) superconductor. We show that pronounced resonance enhancements at the Ru L-2 edge are observed at the wave vector which is consistent with the antiferromagnetic propagation vector of the Fe in the undoped BaFe2As2. We also demonstrate that the XRMS signals at the Ru L-2 edge follow the magnetic ordering of the Fe with a long correlation length, xi(ab) > 2850 +/- 400 angstrom. Our experimental observation shows that the Ru is spin polarized in Ba(Fe1-xRux)(2)As-2 compounds.

URL<Go to ISI>://WOS:000322142900001
DOI10.1103/PhysRevB.88.014424