Phys. Rev. Lett. 102, 037205 (2009) [4 pages]Magnetic Structure of RuSr2GdCu2O8 Determined by Resonant X-Ray DiffractionReceived 22 October 2008; published 22 January 2009 X-ray diffraction with photon energies near the Ru L2-absorption edge was used to detect resonant reflections characteristic of a G-type superstructure in RuSr2GdCu2O8 single crystals. A polarization analysis confirms that these reflections are due to magnetic order of Ru moments, and the azimuthal-angle dependence of the scattering amplitude reveals that the moments lie along a low-symmetry axis with substantial components parallel and perpendicular to the RuO2 layers. Complemented by susceptibility data and a symmetry analysis of the magnetic structure, these results reconcile many of the apparently contradictory findings reported in the literature. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.037205
DOI:
10.1103/PhysRevLett.102.037205
PACS:
75.30.−m, 75.25.+z, 75.50.Ee, 78.70.Ck
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