Abstract
Zero-field (ZF) muon-spin-relaxation measurements have revealed static commensurate magnetic order of Fe moments in NdFeAsO below , with the ordered moment size nearly equal to that in LaFeAsO, and confirmed similar behavior in . In single crystals of superconducting , spectra indicate static magnetism with incommensurate or short-ranged spin structure in of volume below , coexisting with the remaining volume which exhibits a superfluid response below .
- Received 25 October 2008
DOI:https://doi.org/10.1103/PhysRevB.78.214503
©2008 American Physical Society